A bathroom turf war sees deeper lines drawn in the sand as Gloria and Vee go head to head. Piper receives devastating news.

Too many inmates seem to be getting religion, so a rabbi comes to visit and Leanne tries to organize Norma’s followers.

Caputo’s kinder, gentler new regime includes organizing a Mother’s Day fair for the inmates that brings up a LOT of mixed feelings about family.

Piper goes to work for her dad. Vinnie visits Lorna with news. A desperate Taystee asks Daya for a favor. Caputo leads a restorative justice class.

Piper earns her keep by babysitting. Aleida pressures Hopper to go for a promotion. Random drug searches put the heat on Alex. Daya gets an offer.

Pranksters wreak havoc on Halloween. Luschek earns points with the other guards. As Linda faces a crisis, Donuts and Pennsatucky have a change of plans.

Badison hustles to get back in Carol’s good graces. Blanca longs to get pregnant — and Nicky has a plan. Caputo and Figueroa’s relationship evolves.

Boo defends Doggett, Janae consoles Soso, and Lorna comes on to Nicky. While Alex lays low in the yard, Piper decides to take a stand.

With a major security breach and a lot of new inmates, Caputo has to call in the big guns. Things get a little too real for Crazy Eyes and Lolly.

A new job puts Taystee close to Caputo. Lorna has to get creative in her marriage. Soso and Poussey deal with some awkward truths.

Pennsatucky discovers a new skill; the inmates try to scare delinquent teenagers straight; Pornstache’s side business suffers a tragic setback.

As the standoff at the prison spirals into a full-blown riot, enterprising inmates take advantage of the confusion. Taystee confronts Caputo.

Painful truths reorient several relationships and careers; Pennsatucky feels disrespected by Piper, which is not good; Larry delivers an ultimatum.

When her sighting of a legendary feral chicken polarizes the inmates, Larry wonders if Piper is getting too absorbed in the “fishbowl” of prison life.

Blair thinks Cyrus may have found a potential loophole in her prenup. Chuck and Georgina partner up in a scheme, but it has an unpredictable outcome.. Meanwhile, a family crisis…

Blair’s dreams appear to be coming true, but Serena threatens to jeopardize it all by dredging up Blair’s past. Charlie befriends Vanessa, who may or may not have a hidden…

Blair enlists Nate’s help to win over her high-strung boss, Epperly, at W Magazine. Damien stirs up more drama on the Upper East Side. Chuck finds himself torn between business…

Lily, Charlie and Serena eagerly anticipate the Studio 54 party being thrown in CeCe’s honor. Nate takes on a new role at the Spectator, but his first big story turns…

Nate suspects that Juliet is keeping a big secret from him and decides to confront her. Blair schemes to undermine Chuck’s newfound happiness. Dan finds himself torn between his feelings…

Rufus and Lily grow suspect of Jenny’s relationship with Damien. Chuck learns more about the woman who may or may not be his mother. Dan and Vanessa struggle through the…