A bombing blocks away sends Grand Army High School into lockdown, building pressure that spills over at the "party of the century" that night.

Joey stages a protest at school. Owen and Jayson face a harsh penalty for their lockdown prank. A hookup leaves Leila feeling awkward.

Sid struggles with his secret. Nudged by her girls, Dom finally acts on her crush on John. A night of partying takes a devastating turn.

Traumatized, Joey spirals. Sid opens up in his Harvard essay. A health crisis puts more pressure on Dom to financially support her family.

Joey's charges and Owen's discipline hearing send shockwaves at school. Dom's mother makes an uncomfortable proposal to bring in money.

Joey copes with a difficult setback in her case. Choking under pressure, Dom breaks trust with a teacher — and John. The real Sid stands up.

Dom, Joey and Sid find some release. After helping to lead the Black Student Union sit-in, Jayson stuns the crowd at his Lincoln Center performance.