Abby Lee Miller makes emotional return to 'Dance Moms' -- Watch a sneak peek

Abby Lee Miller is back and tougher than ever.

A new trailer for Dance Moms: Resurrection dropped on Tuesday, and in the sneak peek, Miller -- who was released from the Federal Correctional Complex last March after serving a sentence of one year and one day for bankruptcy fraud -- addresses her serious health issues. Last June, the 52-year-old reality star completed her fifth round of chemotherapy for Burkitt lymphoma, which she was diagnosed with after emergency back surgery last April. Over the summer, she had to learn to walk again following another emergency spinal surgery in June. 

"In an instant, your life changes completely," Miller says as footage airs of her being transported by an ambulance. "I'm ready to go back to work and start my life over, and now I can't even walk."

Still, Miller is a fighter. 

"I need to get back to teaching, and I need to get back to screaming at children," she says. "I need to get back to my roots. I'm going to take these kids right back to Pittsburgh."

Dance Moms: Resurrection will air in June on Lifetime. 

In December, Miller confirmed she was returning for season 8 of Dance Moms and that filming was going to start in January. She had previously revealed in March 2017 via Instagram that she was leaving the show, on which she starred as head coach since its debut in July 2011. Former Dancing With the Stars pro Cheryl Burke briefly replaced her for the second half of the series' seventh season.

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Abby Lee Miller from 'Dance Moms'
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Abby Lee Miller from 'Dance Moms'
UNIVERSAL CITY, CA - AUGUST 11: Actress Abby Lee Miller attends the Teen Choice Awards 2013 at Gibson Amphitheatre on August 11, 2013 in Universal City, California. (Photo by Jason Merritt/Getty Images)
LOS ANGELES, CA - APRIL 13: Abby Lee Miller arrives at the Logo NewNowNext Awards 2013 held at The Fonda Theatre on April 13, 2013 in Los Angeles, California. (Photo by Michael Tran/FilmMagic)
WEST HOLLYWOOD, CA - FEBRUARY 24: TV personality Abby Lee Miller attends Chopard at 21st Annual Elton John AIDS Foundation Academy Awards Viewing Party at West Hollywood Park on February 24, 2013 in West Hollywood, California. (Photo by Stefanie Keenan/Getty Images for Chopard)
SANTA MONICA, CA - MARCH 24: TV personality Abby Lee Miller attends the 3rd Annual Whispers From Children's Heats Foundation Legacy Charity Gala at Casa Del Mar on March 24, 2017 in Santa Monica, California. (Photo by Alberto E. Rodriguez/Getty Images)
LOS ANGELES, CA - MAY 14: Abby Lee Miller is seen on May 14, 2017 in Los Angeles, CA. (Photo by GP/Star Max/GC Images)
Reality TV show star Abby Lee Miller leaves at the federal courthouse after pleading not guilty to federal charges in Pittsburgh, Pennsylvania November 2, 2015. Miller pleaded not guilty in a Pennsylvania courthouse on Monday to concealing over $755,000 in income she is accused of earning while head instructor on "Dance Moms" and spinoff shows. REUTERS/Elizabeth Daley
LOS ANGELES, CA - MARCH 11: Actor Abby Lee Miller at Nickelodeon's 2017 Kids' Choice Awards at USC Galen Center on March 11, 2017 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)
SANTA MONICA, CA - MAY 30: Dance Instructor Abby Lee Miller attends the Abby Lee Dance Company LA's VIP Grand Opening at Abby Lee Dance Company LA on May 30, 2015 in Santa Monica, California. (Photo by Vincent Sandoval/WireImage)
INGLEWOOD, CA - MARCH 28: TV personality Abby Lee Miller attends Nickelodeon's 28th Annual Kids' Choice Awards held at The Forum on March 28, 2015 in Inglewood, California. (Photo by Jason Merritt/Getty Images)
INGLEWOOD, CA - MARCH 28: TV personalities/dancers JoJo Siwa, Maddie Ziegler, Kalani Hilliker, tv personality Abby Lee Miller and dancer/tv personality Mackenzie Ziegler, accept the Favorite Reality Show Award for 'Dance Moms' onsteage during Nickelodeon's 28th Annual Kids' Choice Awards held at The Forum on March 28, 2015 in Inglewood, California. (Photo by Lester Cohen/KCA2015/WireImage)
SYDNEY, AUSTRALIA - MARCH 12: Abby Lee Miller and Maddie Ziegler arrives at the 2015 ASTRA Awards at the Star on March 12, 2015 in Sydney, Australia. (Photo by Caroline McCredie/Getty Images)
CULVER CITY, CA - JUNE 14: Abby Lee Miller attends the Opening Night Party during the 2017 Los Angeles Film Festival at Culver Studios on June 14, 2017 in Culver City, California. (Photo by Kevin Winter/Getty Images)
INGLEWOOD, CA - AUGUST 24: TV personality/Choreographer Abby Lee Miller attends the 2014 MTV Video Music Awards at The Forum on August 24, 2014 in Inglewood, California. (Photo by Jeff Kravitz/FilmMagic)
NEW YORK, NY - JULY 16: (L - R) Shad Moss, Abby Lee Miller, Keshia Chante attends 106 & Park at BET studio on July 16, 2014 in New York City. (Photo by Bennett Raglin/BET/Getty Images for BET)
NEW YORK, NY - JULY 16: TV personality Abby Lee Miller visits 106 & Park at BET studio on July 16, 2014 in New York City. (Photo by Bennett Raglin/BET/Getty Images for BET)
RIDGEWOOD, NJ - JULY 15: Abby Lee Miller signs copies Of Her Book 'Everything I Learned About Life, I Learned From Dance Class' at Bookends Bookstore on July 15, 2014 in Ridgewood, New Jersey. (Photo by Jim Spellman/WireImage)
Abby Lee Miller, The FOX Teen Choice Awards 2014 arrivals (Set B) at the Shrine Auditorium in Los Angeles, California. August 10, 2014. (Pictured: Abby Lee Miller)
LOS ANGELES, CA - JULY 08: Dance Instructor Abby Lee Miller arrives at Marvel Universe LIVE! Age Of Heroes World Premiere Celebrity Red Carpet Event at Staples Center on July 8, 2017 in Los Angeles, California. (Photo by Ari Perilstein/Getty Images for Feld Entertainment)
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