Bayside holds a dance-a-thon; Jessie and Slater pull a prank. Aisha is nervous to dance.

Bayside takes part in the spirit competition. Mac asks Zack for the secret to beating Valley.

When West Beverly bans a trans girl from the soccer team, Lexi addresses the issue with a play.

Slater worries about falling into old patterns. Kelly and Lisa encourage Jessie to date again.

Aisha questions her cultural identity during a Spanish class. Jamie tries to prove he has a talent.

Lydia grows suspicious of Elena and Carmen’s intense relationship. Penelope later discovers that the inseparable friends are keeping a big secret.

Although she wants to be accepting and open-minded, Penelope feels weird about Elena’s revelation. Seeking advice, she makes an unexpected connection.

Everyone pitches in to prepare for Elena’s quinceañera. While rehearsing their father-daughter dance, Elena reveals a truth about herself to her dad.

When Lydia disappears after a heated argument with her daughter about religion, the smooth running of the household falls apart in her absence.

Casey tells Izzie what Nate did. Sam tries to figure out which colleges to apply to. Doug discovers a need to educate first responders about autism.

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.

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

Zahid teaches Sam to lie, while Elsa practices being honest. Evan helps Casey get over an embarrassment. A doctor visit forces Julia out of denial.

In peer group, Sam realizes he needs to manage his own money. Doug gets advice from Megan on dealing with Elsa. Evan meets Casey’s new friends.

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.

When Sam learns his crush is already taken, dad Doug helps him woo her. A lost credit card sends Elsa back to the bar. Casey hears rumors about Evan.

After spending a wild night out with Cece and her model friends, Jess jumps in the driver’s seat when she must fill in for Cece at a car show. Meanwhile,…

Jess invites her divorced Mom and Dad over for Thanksgiving dinner and enlists Nick and Cece to help her with a “Parent Trap” to reunite them. Meanwhile, Schmidt’s cousin, Big…

Phil tricks Luke into taking a dance class, but the jokes on him when the white lie indirectly lands him in the slammer. Meanwhile, Jay and Gloria are throwing birthday…

A wealthy inventor arrives at Grey Sloan and asks Koracick for help, while Meredith struggles to save a woman with diabetes who has been rationing her insulin. Jo and Link…

With the arrival of new enemies, Shane and Silas needs Nancy’s protection. Meanwhile, Andy plans his future with Audra, while Doug and Dean make a plan to put an end…