PJ refuses to explain how he came to be standing over the dead body of Luke Darcy, forcing the Homicide Squad to arrest him for murder. The other Heelers must prove his innocence and find the real killer. Meanwhile the Heelers get a surprise when Jo finds out that she has been promoted to Senior Constable, when her strips and badge come in the mail. And they also find out that Ditch is the father of Kayla's baby.