Interested in having a girlfriend, Sam researches dating advice and puts it to the test. Meanwhile, his overprotective mom Elsa must learn to let go.

Sam becomes rattled after Paige invades his bedroom. Casey visits Clayton Prep and gets a taste of what life away from her brother would be like.

When Paige makes a confession to Sam, he creates a checklist to figure how he feels. Things with Nick suddenly get too real for Elsa.

After a disastrous dinner with Paige's family, Sam makes amends at the school dance. Casey's fury at her mom affects her relationship with Evan.

A peer group meeting leads Sam to an important decision. Detention with Izzie shows Casey they have more in common than she thought.

Ignoring Casey's wishes, Elsa throws her a big birthday party, while Sam insists on following a decade-old birthday ritual. The bartender haunts Doug.

Casey and Evan take to the open road for a tense reunion. Back home, Sam and Zahid get ready to party, and Elsa bids farewell to the past.

A hard truth keeps Casey up at night. Sam experiences a rough season with Zahid -- and Paige. Elsa and Doug brace for their next chapter.

Sam's living situation with Zahid gets off to a rocky start, while Elsa struggles with her son's departure. Casey weighs telling Doug about Izzie.

Sam seeks a worthy caretaker for Edison. Casey tries to be supportive of Izzie, but her plan backfires. Zahid shares tough news with Sam.

As Casey reaches a crossroads, she finds herself questioning a lot of things. But in the meantime, she helps Sam get over a hurdle of his own.