The dance competition season is off to a rocky start when a key team member disappears.

Maddie and Kalani prepare for a showdown; Abby's rival seeks revenge; Abby's team members begin to turn against her.

Maddie heads to Los Angeles for an exciting new opportunity; the mothers question Abby's dedication to this week's routines since her favorite dancer is gone; Abby calls in JoJo as a substitute for Maddie.

JoJo and Jess return to fight for a spot on the ALDC; the team prepares for their Hollywood adventure; Holly and Jill are concerned that Nia and Kendall will be forgotten by Abby.

The ALDC arrives in Los Angeles; a top west coast dance studio declares war on the ALDC; Abby sets up an audition with a casting agent for the girls; Abby suffers a breakdown, causing the mothers to question her abilities as a manager.

After a chaotic first week in Los Angeles, things do not settle down when Abby and Holly have their biggest and most shocking fight ever, causing Holly to go behind Abby's back to work with a huge star despite the consequences. Maddie prepares for another big Hollywood job, and all the girls soon are on edge when Abby announces an open call audition in Los Angeles. Holly and Nia grow especially fearful of their futures with the ALDC.

The mothers' patience with Abby grows thin during the ALDC's last week in Los Angeles; Abby brings in two swing dancers that threaten the other girls' chances at an audition; Abby's job as a manager is put to the test.

While in Los Angeles, the girls juggle a competition and a music video shoot; Abby attempts to shut down the music video shoot; the mothers fight to keep their daughters on the team when Abby announces that she will be cutting one dancer.

The ALDC returns to Pittsburgh; the mothers are divided based on who stayed to film the music video and those who left; the group dance becomes a personal attack against the mothers; Abby discovers the team is in the teen division.

The ALDC girls move forward after a rocky journey to Los Angeles; Cathy returns with a surprise choreographer; Abby invites Ashlee and her daughter Brynn to come dance at the ALDC and quickly praises Brynn as "the next Maddie."

The ALDC heads to Philadelphia with a risky non-lyrical routine; Abby gives Nia an ultimatum; frustrated with the lack of support from Melissa and Jill, Holly makes friends with two unlikely allies.

The media goes crazy for Maddie's second music video with Sia; Cathy assembles a team of dancers who have all worked with Abby and are ready to seek vengeance on the dance floor.

While Maddie is away, Mackenzie has the opportunity to prove herself; Abby decides to push the envelope with a sassy routine in a competition against Cathy's premium Candy Apples team.

The ALDC returns to Los Angeles to compete; Abby decides to manage Kendall's new singing career; Nia and Kendall work to become pop stars while going head to head with solos; the girls give their all in the group dance.

Determined to have a victory, the girls face Murrieta Dance Project; Abby gives solos to her strongest dancers; Nia is left out of a show-biz opportunity.

JoJo and Kendall have challenging solos for the last competition in Los Angeles; Nia and Kendall have music video shoots; Holly and Jill get competitive.

The team returns to Pittsburgh to tie up loose ends before they move to Los Angeles; Abby schedules the team to attend a competition and a convention; Holly organizes a premiere party for Nia's music video.

The ALDC embarks on their final competition before their move to Los Angeles; chaos ensues when only two girls show up at the competition; Cathy and Jeanette try to take down the ALDC; the team risks being disqualified.

Abby and the mothers meet to discuss the highs and lows of the season; Holly and Abby go head to head; Cathy and Jeanette stir things up; Maddie discusses her newfound fame; the team reflects on their experiences.

The ALDC heads to Australia to perform at the ASTRA Awards; Abby loses her passport and leaves the team stranded in Sydney without her; Jess confronts the other mothers; Maddie misses a crucial rehearsal when she goes to an interview in Abby's place.

The team is divided into two factions when Abby excludes Nia and JoJo from the rest of the planned events in Australia; Kendall, Kalani, Maddie and Mackenzie must learn a new routine to perform at a private fan event.

The team makes its permanent move to Los Angeles; Kendall is pushed to the limit as her pop star debut approaches along with having a solo; Abby makes a dramatic decision.

Maddie and Mackenzie compete with solos against each other in the same age category; Abby brings in a guest choreographer to teach the girls a routine inspired by voguing.

The ALDC's biggest west coast rival, MDP, is back and Abby wants to put her best foot forward at competition. After Mackenzie's huge win against her big sis Maddie, Abby tests her confidence with a big opportunity--will she be able to handle it? Meanwhile, JoJo's sick grandmother is visiting LA and Jess is desperate for JoJo to have a featured role. However, Abby is not eager to take a big risk since MDP is out for revenge from their last loss.

The moms push Abby for more dance classes after losing two competitions in a row. When Abby refuses to take responsibility for the girls' lack of training, Kira takes matters into her own hands and brings in outside help, which infuriates Abby. Meanwhile, Abby pressures Maddie to regain her standing as ALDC's top dancer.

Where in the World Is Abby Lee Miller?

With only four weeks until Nationals, the ALDC is desperate for a group routine win. To make matters worse, the Candy Apples are back with a surprise guest and they're ready to capitalize on ALDC's current misfortunes.

The ALDC is finally in their new LA studio and Abby announces that their official grand opening party will coincide with Nationals in two weeks! After Kendall beat JoJo last week, she's rewarded with a solo up against both Maddie and Mackenzie to determine once and for all who will get the solo at Nationals.

With only one week left until Nationals, the ALDC is facing the super talented MDP who are bringing their best routine yet. Abby gives Kalani and Nia head-to-head solos to determine who will get the senior division solo next week.

The girls get ready to take part at Nationals and feel the pressure to remain undefeated.

Coming off of a major loss at nationals, it's time for Abby Lee Miller and the dance moms to hash out what went wrong.

In this Slumber Party special, Maddie takes us behind the scenes as she and the girls from Dance Moms dish on celebrity crushes, makeup tips, who takes the longest to get ready and more!