After an eight week break, Abby reaches out to the Junior Elite mothers and asks them to come to the ALDC to hear an announcement.

Abby challenges the Junior Elites to a head-to-head competition, sends the minis home and brings in two new elite girls. But, when Abby's biggest rival returns, the moms worry about her ability to hold it all together.

Abby brings an edgy group routine, inspired by Kalani's 16th birthday, to this week's competition hoping to overtake Cathy and her Candy Apples for the second week in a row. Kendall dances a Maddie solo determined to beat Nicaya.

Abby challenges Daviana and Kalani to a head-to-head solo showdown; two minis rejoin the team; Abby eliminates a member of the super team.

Abby brings in a new dancer with an eccentric mother; Abby encourages Brynn to lead Kalani and Kendall in their trio; the mothers are nervous when Abby assigns the first hip-hop routine since the elites walked out.

Constant changes to the team have the moms worried. Nia gets her first solo in a year and Abby gives two of her new dancers a chance to shine on stage. The veteran moms go on the attack after one of the new moms puts down their kids.

Abby and the ALDC try to break a long standing losing streak in Fresno, Calif.; Holly's nerves are frayed when Abby announces the theme for a controversial group dance; Elliana and Maesi's duet brings out the worst in their mothers.

Abby brings the girls to a cemetery to get them in the spirit for a graveyard-inspired routine; the mothers are frustrated when Brynn is given a special part; Elliana and Lilliana are given head-to-head solos for the first time.

Abby auditions a new dancer to be a part of the Great 8 team heading to Nationals; Brynn, Lilly and Maesi all go head-to-head with solos; the mothers are hopeful that a new dancer will complete the team, but Ashlee thinks otherwise.

Kalani, Kendall and Nia all dance competing solos in Denver; the minis are in a technically complicated group dance, and the mothers wonder if this addition will ruin their winning streak heading into Nationals.

In the final week before the ALDC heads to Pittsburgh for Nationals, the elite girls struggle with a difficult ballet routine. Abby becomes obsessed with the mini soloists; Kendall resumes her stalled music career.

The team returns to Pittsburgh where the stress of proving themselves leads to explosive battles between some of the mothers; Abby questions Camryn's desire to be on the team and gives her one more chance to prove herself.

The ALDC battles the Candy Apples for the final time this season; Abby breaks down when faced with an uncertain future; a surprise guest makes an appearance that shocks the whole team.

Highlighting Abby's past and her deepest fears for the future as she faces the harsh reality of going to prison; Abby discusses her past mistakes, what she has learned and what fans can expect from her upon her release.

News spreads about Abby's approaching court sentencing; Abby's denial creates havoc for the team; Abby creates a group dance centered around Ashlee and Brynn's family court battle.

The mothers butt heads with Abby over a vegan-inspired routine; Kendall, Brynn and Kalani compete; the team says goodbye to Abby when she leaves for Europe.

The mothers bring in choreographer Laurieann Gibson, which shakes things up; Chloe returns to the competition world for the first time in two years.

The mothers bring in choreographer Laurieann Gibson, which shakes things up; Chloe returns to the competition world for the first time in two years.

Laurieann Gibson returns and is more determined than ever to win. With two duets and a group, the girls struggle with stamina as well as Laurieann losing her patience with the moms at competition in an explosive face-off.

The Irreplaceables and the ALDC go head to head at a competition for the first time; Abby's team competes with a fan-favorite group number; the older girls shock the audience with a mature routine.

The Irreplaceables and the ALDC go head to head at a competition for the first time; Abby's team competes with a fan-favorite group number; the older girls shock the audience with a mature routine.

Cheryl adds an old rival to the team, but the mothers are not happy with sharing the spotlight; Kalani suffers an injury, putting her solo and the group routine in jeopardy; the pressure of winning brings Camryn to her breaking point.

Emotions run high as the team prepares for their final Nationals competition as the Irreplaceables; with four solos, the girls go head-to-head to see who can come out on top; the mothers and the girls contemplate what their future holds.

Chloe and Christi Lukasiak reminisce about the past and explain what was going on behind the scenes.