A bank robbery gone wrong turns into a bizarre hostage situation for a father-and-son police duo not used to solving serious crimes.

Wait, where'd the robber go? Eager to get the case back on track, Jack and Jim interview a couple of witnesses who may know more than they let on.

Police begin to suspect Zarah the banker of, well, something. Meanwhile, Jim and Jack welcome a surprise guest and Lennart turns on the charm.

Julia and Ro's romantic backstory comes into focus. Meanwhile, in the present day, Ro goes missing just as a very pregnant Julia needs her most.

Well, this is awkward. After ruling out the robbery other suspects, the police focus their suspicions on the one person they can't seem to find.