EXCLUSIVE: Milo Ventimiglia and Mandy Moore react to 'This Is Us' season 2 premiere's 'powerful' final scene

Warning: Spoiler alert! Do not proceed if you haven’t watched the This Is Us season two premiere. If you have, read our recap, then come on back and hear what the stars had to say…

Milo Ventimiglia and Mandy Moore are speaking out about the devastating final scene in the This Is Us season two premiere.

In Tuesday's episode, a huge piece of the puzzle to how Jack died was revealed in the last minutes of the show's return. After the Pearson patriarch admitted to secretly battling alcoholism, Rebecca demanded he "get in the car" so they could fight it together. “In a few months from now, everything will be back to normal," Rebecca assured Jack. The scene transitioned to a moment -- presumably several months later -- with Rebecca alone in the car and Jack's possessions in a plastic bag, as she drove up to the family home, which had just been destroyed by a fire.

With one piece of the answer to Jack's death answered in the premiere (something to do with a fire), Ventimiglia -- who, like his This Is Us castmates, have danced around the topic for six months -- expressed relief over that crucial piece of intel now being out there in the world for viewers to dissect.

"I feel like I'm right back to season one, the whole mystery about the family right at the end of the first episode. It's the same feeling of, 'OK, I'm relieved of duty.' I don't need to [skirt around] questions anymore," the 40-year-old actor told ET's Leanne Aguilera at the season two premiere party at NeueHouse in Hollywood on Tuesday. "It's an amazing episode written by Dan Fogleman, directed by Ken Olin. It's just so great. I'm happy."

Ventimiglia agreed that the final minutes from the episode were mind-blowing, revealing that though he knew what was coming, the actual scenes were still omitted from his script.

26 PHOTOS
Milo Ventimiglia through the years
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Milo Ventimiglia through the years
CHICAGO, IL - AUGUST 23: Actors Milo Ventimiglia attends Wizard World Comic Con Chicago 2015 - Day 4 at Donald E. Stephens Convention Center on August 23, 2015 in Chicago, Illinois. (Photo by Gilbert Carrasquillo/WireImage)
Milo Ventimiglia (Gilmore Girls) (Photo by Barry King/WireImage)
Milo Ventimiglia at the Academy Theatre in Beverly Hills, California (Photo by Gregg DeGuire/WireImage)
Presenters Jared Padalecki, Alexis Bledel and Milo Ventimiglia for Choice TV Reality Scariest Moment (Photo by Ray Mickshaw/WireImage)
Milo Ventimiglia during 20th Century Fox Emmy After Party At Morton's at Morton's Restaurant in Los Angeles, California, United States. (Photo by J. Merritt/FilmMagic)
BEVERLY HILLS, CA - MARCH 1: Actor Milo Ventimiglia and actress Alexis Bledel speak during the EIF's Women's Cancer Research Fund honoring Melissa Etheridge at Saks Fifth Avenue's Unforgettable Evening on March 1, 2006 at the Regent Beverly Wilshire Hotel in Beverly Hills, California. (Photo by Kevin Winter/Getty Images)
Milo Ventimiglia during 5th Annual Tribeca Film Festival - 'Civic Duty' Premiere - After Party at BED Nightclub in New York City, New York, United States. (Photo by Jason Kempin/FilmMagic)
HEROES -- Pilot -- Pictured: Milo Ventimiglia as Peter Petrelli (Photo by Mitch Haaseth/NBC/NBCU Photo Bank via Getty Images)
Milo Ventimiglia (Photo by Mark Sullivan/WireImage)
Antonio Tarver and Milo Ventimiglia during MGM Pictures, Columbia Pictures and Revolution Studios present the World Premiere of 'Rocky Balboa' at Grauman's Chinese Theater in Hollywood, California, United States. (Photo by E. Charbonneau/WireImage for MGM)
Milo Ventimiglia during 64th Annual Golden Globe Awards - Arrivals at Beverly Hilton in Beverly Hills, CA, United States. (Photo by SGranitz/WireImage)
HEROES -- 'Five Years Gone' Episode 20 -- Aired 4/30/07 --Pictured: (l-r) Milo Ventimiglia as Peter Petrelli, Ali Larter as Niki/Jessica Sanders (Photo by Chris Haston/NBC/NBCU Photo Bank via Getty Images)
Milo Ventimiglia at the Cabana Club in Burbank, California (Photo by Albert L. Ortega/WireImage)
LOS ANGELES, CA - JUNE 19: Actor Milo Ventimiglia arrives at the party to celebrate 'The Circle' and 'Welcome To Your Crisis' author Laura Day at ONE Sunset restaurant on June 19, 2007 in Los Angeles, California. (Photo by Charley Gallay/Getty Images)
NEW YORK - JULY 23: (U.S. TABLOIDS OUT) Actor Milo Ventimiglia makes an appearance on MTV's Total Request Live on July 23, 2007 in New York City. (Photo by Peter Kramer/Getty Images)
LOS ANGELES, CA - SEPTEMBER 16: Actor Milo Ventimiglia arrives at the 59th Annual Primetime Emmy Awards at the Shrine Auditorium on September 16, 2007 in Los Angeles, California. (Photo by Ethan Miller/Emmys/Getty Images for FOX)
LOS ANGELES, CA - NOVEMBER 14: Actor Milo Ventimiglia attends the Race To Fight Epilepsy event which started off at the Skirball Centre by celebrities driving off in Lamborghini's on November 14, 2007 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)
NEW YORK - APRIL 15: (U.S. TABS OUT) Actor Milo Ventimiglia appears onstage during MTV's Total Request Live at the MTV Times Square Studios April 15, 2008 in New York City. (Photo by Bryan Bedder/Getty Images)
HOLLYWOOD - AUGUST 10: Actor Milo Ventimiglia attends the Whaleman Foundation Benefit Dinner at Beso on August 10, 2008 in Hollywood, CA. (Photo by Charley Gallay/WireImage)
LOS ANGELES, CA - APRIL 19: Milo Ventimiglia arrives at the Heroes For Autism Event at the Avalon Hollywood on April 19, 2009 in Los Angeles, California. (Photo by Jean Baptiste Lacroix/WireImage)
LOS ANGELES, CA - FEBRUARY 17: Actor Milo Ventimiglia arrives at the One Club's 2nd Annual One Show Entertainment Awards on February 17, 2010 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)
WESTWOOD, CA - JUNE 04: Actor Milo Ventimiglia arrives at the Los Angeles premiere of 'That's My Boy' held at Regency Village Theatre Westwood on June 4, 2012 in Westwood, California. (Photo by Jason Merritt/Getty Images)
HOLLYWOOD, CA - FEBRUARY 21: (EXCLUSIVE COVERAGE) Milo Ventimiglia Visits 'What's Trending' on February 21, 2013 in Hollywood, California. (Photo by Michael Bezjian/WireImage)
LOS ANGELES, CA - DECEMBER 03: Actor Milo Ventimiglia attends the Crackle's season 2 premiere of original digital series 'Chosen' held at the Pacific Theaters at the Grove on December 3, 2013 in Los Angeles, California. (Photo by Tommaso Boddi/WireImage)
CHICAGO, IL - AUGUST 21: Actor Milo Ventimiglia attends Wizard World Comic Con Chicago 2015 - Day 2 at Donald E. Stephens Convention Center on August 21, 2015 in Chicago, Illinois. (Photo by Gilbert Carrasquillo/WireImage)
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"I'd read what it was but it was disjointed," he shared. "I knew what was happening, but even when I read it, I was like, 'Wow, this is big, this is powerful.' This is everything that we want from this show, from these characters. It's everything that we want out of Jack and Rebecca and Randall and Kate and Kevin. It's what we want to see. We want to get back into the world of this family."

The day of Jack's death provided several clues as to what was going on with the family at the time. Teenage Kate had a dog, Randall had a red-headed girlfriend and Kevin, who wasn't with his siblings when his father died (Kate broke the news to him), had a broken leg and was kissing a girl (possibly Sophie). Meanwhile, Rebecca was wearing a Pittsburgh Steelers jersey.

"I think people just need to pay attention, like really, really pay attention because you'll start to pick up on indicators. You'll see some things that maybe you hadn't seen before," Ventimiglia told ET of the blanks that remain unfilled as the show heads into episode two. "If you're paying attention to it, then you're gonna pick up some clues as to timeline, as opposed, not in addition to, events. So yeah, you just gotta pay close attention. I feel like it's like a game of clues."

During the Q&A following the premiere screening, Ventimiglia admitted to some relief over the episode airing and being able to freely talk about what's to come, saying that the final minutes are "a big piece" of the Jack mystery. "It’s like a pressure valve released a little bit," he confessed. "But as Dan has always said, ‘With this answer, there’s still a lot of questions.’”

25 PHOTOS
Mandy Moore out and about
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Mandy Moore out and about
LOS ANGELES, CA - JUNE 07: Actress Mandy Moore attends the 'This Is Us' FYC screening and panel at The Cinerama Dome on June 7, 2017 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - JUNE 07: Actress Mandy Moore, shoe detail, attends the 'This Is Us' FYC screening and panel at The Cinerama Dome on June 7, 2017 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - JUNE 07: Actress Mandy Moore attends the 'This Is Us' FYC screening and panel at The Cinerama Dome on June 7, 2017 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - NOVEMBER 15: Actress Mandy Moore attends Prada Presents 'Past Forward' by David O. Russell premiere at Hauser Wirth & Schimmel on November 15, 2016 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)
LOS ANGELES - NOVEMBER 15: Mandy Moore and Matthew Broderick chat with James Corden during 'The Late Late Show with James Corden,' Tuesday, November 15, 2016 (12:35 PM-1:37 AM ET/PT) On The CBS Television Network. (Photo by Terence Patrick/CBS via Getty Images)
BEVERLY HILLS, CA - NOVEMBER 07: Mandy Moore attends the Holiday Of The Heart Gala at the Beverly Wilshire Four Seasons Hotel on November 7, 2016 in Beverly Hills, California. (Photo by Jerritt Clark/Getty Images)
LOS ANGELES, CA - NOVEMBER 03: Actress Mandy Moore attends the NBC and Vanity Fair toast to the 2016-2017 TV season at NeueHouse Hollywood on November 2, 2016 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
PACIFIC PALISADES, CA - OCTOBER 15: Mandy Moore arrives at the 7th Annual Veuve Clicquot Polo Classic at Will Rogers State Historic Park on October 15, 2016 in Pacific Palisades, California. (Photo by Steve Granitz/WireImage)
PACIFIC PALISADES, CA - OCTOBER 15: Mandy Moore arrives at the 7th Annual Veuve Clicquot Polo Classic at Will Rogers State Historic Park on October 15, 2016 in Pacific Palisades, California. (Photo by Steve Granitz/WireImage)
THIS IS US -- 'The Best Washing Machine in the Whole World ' Episode 107 -- Pictured: (l-r) Milo Ventimiglia as Jack, Mandy Moore as Rebecca -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'The Best Washing Machine in the Whole World ' Episode 107 -- Pictured: Mandy Moore as Rebecca -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE -- Pictured (l-r): Nile Rodgers and Mandy Moore -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - SEPTEMBER 27: Actress Mandy Moore is seen on September 27, 2016 in New York City. (Photo by Patricia Schlein/Star Max/GC Images)
NEW YORK, NY - SEPTEMBER 27: Singer/ actress Mandy Moore attends the Hearst launch of HearstLive, a multimedia news installation, at Hearst Tower on September 27, 2016 in New York City. (Photo by Matthew Eisman/Getty Images)
TODAY -- Pictured: (l-r) Anchors Hoda Kotb and Kathie Lee Gifford with Mandy Moore on Tuesday, September 27, 2016 -- (Photo by: Peter Kramer/NBC/NBCU Photo Bank via Getty Images)
LOS ANGELES, CA - SEPTEMBER 18: Mandy Moore arrives at the 68th Annual Primetime Emmy Awards at Microsoft Theater on September 18, 2016 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
Actress Mandy Moore attends The screening of NBC 'This Is Us' at The Tenth Annual PaleyFest Fall TV Previews presented by The Paley Center For Media, in Beverly Hills, California, on September 13, 2016. / AFP / VALERIE MACON (Photo credit should read VALERIE MACON/AFP/Getty Images)
THE TONIGHT SHOW STARRING JIMMY FALLON -- Episode 0530 -- Pictured: Actress Mandy Moore during an interview on September 9, 2016 -- (Photo by: Andrew Lipovsky/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'The Game Plan' Episode 105 -- Pictured: (l-r) Mandy Moore as Rebecca, Milo Ventimiglia as Jack -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
BEVERLY HILLS, CA - AUGUST 04: Actress Mandy Moore arrives at the Hollywood Foreign Press Association's Grants Banquet at the Beverly Wilshire Four Seasons Hotel on August 4, 2016 in Beverly Hills, California. (Photo by JB Lacroix/WireImage)
THIS IS US -- 'The Pool' Episode 104 -- Pictured: (l-r) Mandy Moore as Rebecca, Lonnie Chavis as 8 year old Randall -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
BEVERLY HILLS, CA - AUGUST 02: Mandy Moore attends the 2016 Summer TCA Tour - NBCUniversal Press Tour on August 2, 2016 in Beverly Hills, California. (Photo by JB Lacroix/WireImage)
NBCUNIVERSAL EVENTS -- NBCUniversal Summer Press Tour, August 2, 2016 -- Party at BOA Steakhouse -- Pictured: (l-r) Mandy Moore, Milo Ventimiglia, 'This is Us' -- (Photo by: Mark Davis/NBCUniversal/NBCU Photo Bank via Getty Images)
UNIVERSAL CITY, CA - MAY 26: Actress Mandy Moore arrives for The Red Nose Day Special On NBC at Alfred Hitchcock Theater at Universal Studios on May 26, 2016 in Universal City, California. (Photo by Albert L. Ortega/Getty Images)
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Moore cautioned that what viewers saw at the end of the premiere isn't the full story of what happened to Jack. Those answers will be doled out in time over the course of the season.

"It's not the full answer. It's not the full story, because we have 18 episodes to tell that in and for that to unfold," Moore told ET. "It's a very monumental, pivotal moment in the lives of this particular family, so it can't just all come out in one fell swoop."

This Is Us airs Tuesdays at 9 p.m. ET/PT on NBC.

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