The murder of a corrections officer leads the Major Case Squad to a corrupt ring of abusive guards in a Brooklyn prison, and the key to exposing the activity lies with a prison nurse who is dating Detective Mike Logan (Chris Noth).
The ladies give themselves a lesson in Biology. Lorna takes a big risk to spend time with Christopher. Piper and new inmate Brook butt heads.
Relationships are tested as Valentine’s Day comes to the prison. Poussey questions Taystee’s alliance with Vee. Piper makes a bold proposition to Healy.
When the prison’s plumbing backs up, Gloria and Vee square off in a battle over bathrooms. Red takes up a new hobby. Piper gets some surprising news about her family.
A group of inmates starts publishing a prison newsletter. Business booms for Vee and her girls, but is everyone on board? Gloria and Red come to a mutual understanding.