Pearle makes new friends in a water aerobics class who turns out to have a sinister secret; Alex buys his first smartphone, which seduces him into a digital fantasy world.
When Alex and Bridgette get sick of kid-friendly activities, Josh and Emily seek out new like-minded parent friends; Bridgette finds the perfect match for Alex - but has second thoughts when she realizes she still has feelings for him.
Bridgette is sick of unreliable guys who "ghost" her until she falls for an actual ghost; After Josh abandons his family in the face of danger, he asks Pearle to train him to be brave.
Josh realizes he doesn't connect with Alex like old times and tries to fill up the hole with a new "companion"; Meanwhile, Emily and Bridgette are having problems with their band.
The roommates' tropical vacation is derailed by Candice's tutoring needs; when Josh attempts to finish a video game, he must confront an inner demon; Alex tries to win his students' respect.