The pair find themselves forced to make an unlikely alliance with Oscar Hutchinson in order to safely evacuate their detainees from the prison, as well as saving the warden from the hostage situation.
As Grey is heading to court to testify in a case against a powerful mobster, a woman is killed in a drive-by and a man is poisoned at the station, both of whom are revealed to have been witnesses in the same case that Grey is testifying in.
She's an organ donor, so he accompanies her body to the hospital.