Maura and Ali uncover new truths about their family. Shelly gets bold in her improv class. Sparks fly between Sarah, Lila, and Len and they set off to hatch a plan. Josh is haunted by the past.

The family convenes for an unusual vacation and encounters a tribe of long-lost Pfeffermans. Ali pulls away from the rest of the family as her political convictions drive her to challenge the binary.