Ali is blindsided when Leslie goes public with the details of their relationship. Sarah is ignited by a new connection with her daughter's former teacher, Lila. Josh unexpectedly encounters an ex. Shelly takes up improv. Ali joins Maura on her trip to Israel and their journey gets off to a bumpy start.

Sarah tests a new parenting style and is shocked to discover that it works. Josh reconnects with Dr. Steve as tensions rise at home with Shelly. Drawn in by an intriguing new friend, Ali travels to Palestine. Maura makes a life-changing discovery about her family history.

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.

Maura revisits the night that Ali was born. Davina recalls memories of her youth and comes to terms with her troubled relationship with Sal. Davina and Maura each make a deal with God.

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.

Sarah and Len divert a family outing to visit Lila's mom, leading to a blowup between the siblings. Ali breaks off from the group to visit her friend Lyfe in Ramallah while the other Pfeffermans engage in some questionably authentic tourism of desert life.

Maura yearns to forge a new relationship but finds the connection strained. Ali is drawn to rejoin her family. Out in the vast desert Josh tries his hand at shooting a gun, leaving Shelly rattled.

Back in Los Angeles, Davina's stay at the Pfeffermanhouse is rudely interrupted. The Pfeffermans float in the Dead Sea and Ali rushes to meet them but is waylaid at an Israeli checkpoint.

Feeling compelled to learn more about herself in Israel, Ali stays back as the rest of the family returns to Los Angeles. Sarah, Len, and Lila reevaluate their complicated relationship. Josh confronts his sex and love issues head on. Maura and Davis reclaim the Pfefferman house from an unwanted guest.