Mysterious tensions are brewing within family dynamic. With Dixie in her single era, Charli and Landon search for a suitable suitor, but Dixie struggles with a new mental health diagnosis that could derail all her relationships.

Dixie parties with her team in Nashville, as she tries to get her mental health and music career back on track. With Dixie gone, Charli questions if they should continue to live together as she heads off to the Grammy's with Landon.

Charli wants Landon to join her in Milan for Fashion Week, but his phobia might keep him on the tarmac. Meanwhile, Dixie is ready to take on the runways in Milan, but the emotional toll of a "parent situation" looms large.

Charli leaps out of her comfort zone to co-host the Kids' Choice Awards. Dixie enjoys la dolce vita in Milan with her BFF Kate. Charli meets with an astrologer, who questions whether Landon is keeping secrets. Family drama erupts at the office.

The simmering family conflict reaches a boiling point, as each family member shares their side of what really happened while Charli and Heidi were competing in "Dancing With The Stars," all while Charli and Heidi prepare for their final DWTS Live Show.

The sisters head to Coachella, where old flames resurface. Dixie considers co-hosting a sex and relationship podcast with Josh Richards, sparking internet rumors. A misstep at the D'Amelio Footwear photo shoot reveals fresh friction in the family.

Charli travels to Tokyo for a commercial shoot, but when the family tags along on the trip, she questions whether she is being taken advantage of. Heidi and Marc worry about Dixie's health.

Dixie wants to be #1 again and will do whatever it takes to win a team triathlon. Charli is forced to face her fear of driving under duress, and second-guesses her future - in business and in love.

Charli sets aside heartache for the launch of D'Amelio Footwear, but finally takes control of her life when she escapes for some teenage normalcy. Dixie suffers a terrifying medical crisis and must reassess what it means to love and care for herself.