Sherlock and Joan search for an ulterior motive when a brilliant young criminal they helped put in prison, seeks their help in solving a murder.

While investigating the murder of private eye Mick Chisel, who was stabbed in the head with an ice pick, Liv consumes Chisel's brain in hopes of breaking down how this gruesome murder took place.

With two eliminations on the line, the pressure is on for the losing team in the tag-team challenge.

Dealing with the losses of a drug war, Teresa and Dumas finally strike a truce.