The fourth season of the American comedy-drama television series Orange Is the New Black premiered on Netflix on June 17, 2016, at 12:00 am PST in multiple countries.

The season received critical acclaim, again winning the Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Comedy Series and Outstanding Performance by a Female Actor in a Comedy Series for Uzo Aduba, and numerous other awards.

Caputo meets with MCC; in order to qualify for government cutbacks, they decide to hire veterans as COs who will be housed at cabins on campus.

Daya is worried about her baby being placed in foster care, as Cesar is going to jail for conspiracy to commit murder and assaulting a police officer.

Later, Sophia lights her mattress on fire using a lightbulb, and the guards are forced to evacuate the SHU's inmates.

The class is a success, but Judy asks Caputo to change Healy as her counselor, stating that he has power issues.

At the convention, Caputo gets arrested after getting into an altercation with Danny Pearson, who attempts to use the event to speak out against the system.

In an effort to stop Maria from cutting into her panty business, Piper is given permission by Piscatella to form a security group.

Lolly finds a friend in a kindly Healy, and she secretly builds a "time machine" out of cardboard.

Outside the prison, Judy King faces backlash when old footage of her hosting a racist puppet show goes viral.

Piper realizes her power has corrupted her, and though she takes steps to make amends, a plan of revenge is already in motion.

At Nicky's party, Piper gets kidnapped by Maria and her gang, who brand the Nazi swastika into her arm.

Blanca rebels against the COs by applying foul-smelling substances on her body in order to stop them from frisking her.

News of Judy and Cindy's fake relationship spreads after Luschek sells the picture to the tabloids.

CO Humphrey punishes Maritza for her part in the smuggling scheme by forcing her to eat a baby mouse in the COs cabin.

Piscatella defies Caputo's orders and begins interrogating inmates, including Red, Suzanne, and Maureen.

Lolly is subsequently sent to Psych A. Caputo attempts to suspend Humphrey for instigating Suzanne's fight with Maureen.

Healy grapples over his decision to send Lolly to Psych, and he signs himself into a mental health facility.

Humphrey instinctively pulls out a gun, but Maritza pushes him over, and it slides across to the Hispanics; Daya picks it up.

The site's critical consensus reads: "Orange is the New Black is back and better than ever, with a powerful fourth season full of compelling performances by the ensemble cast.