Part 1 of 2. Abby hits a creative roadblock with the group routine for Nationals. Later, four girls are assigned solos, but two moms aren't happy that none of them are original members; Kendall premieres her music video; and a former ALDC dancer considers visiting her old teammates.
The team travel to Pittsburgh for Nationals, but mounting pressure leads to feuds between the moms. Later, Abby questions Camryn's desire to be on the team; and the ALDC compete against the Candy Apples in their last face-off before Nationals.
The ALDC spend their last week in Los Angeles before traveling to Pittsburgh for Nationals; and the elite team struggle with a difficult routine and a negligent coach. Later, Kendall shoots a new music video.
The ALDC travel to Denver for a competition, where Kalani, Kendall and Nia perform solos. Later, the mini team does a technically-complicated group dance; and the moms worry about ruining their winning streak with Nationals approaching.
Abby auditions another new dancer to be a member of the team that's heading to Nationals. Later, Brynn, Lilly and Maesi perform solos; and the moms are hopeful about the new dancer, but Ashlee disagrees after her mom insults Brynn.
The girls go to a cemetery to prepare for a graveyard-inspired group routine. Later, the moms are frustrated with Brynn's special treatment; and Elliana and Lilliana are assigned head-to-head solos, leading Yolanda to crack under pressure at competition.
The ALDC try to break their losing streak in Fresno; and Holly's nervous about Abby's controversial group dance that addresses race relations. Later, Elliana and Maesi's duet brings out the worst in Yolanda and Jamie.
The moms worry about their constantly-changing team with nationals only six weeks away. Later, Nia is assigned her first solo of the year; two new dancers get an opportunity to shine on stage; and the veteran moms go on the defensive against a new mom.
Abby brings in a new dancer with an eccentric mom and assigns her a challenging trio with two minis. Later, Abby encourages Brynn to be a leader; and the team's moms fear a hip-hop routine will bring the ALDC's winning streak to an end.
Abby challenges the junior elites to a head-to-head competition and decides to make big changes within the team. Later, Abby sends a few girls home and enlists two new dancers; and the moms worry about Abby's temperament when her arch rival returns.