Two undercover officers are killed while protecting a witness. Fearing there's a mole, Josh hires Mick to find the witness and bring her back. Mick's able to locate her in the desert, but gets too much sunlight. On the verge of death, Mick needs blood to survive. Meanwhile Josh and Beth find out Mick's car has been destroyed, while Josh tries to find the mole, Beth worries that Mick may be dead.