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).
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.
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.
Caputo declares all-out war on contraband and sets his sights on Red -- but his own guards might end up as targets. Piper gets singled out when the inmates believe she’s gotten special treatment. Miss Rosa faces an uncertain future.
