Tick and Arthur hunt their bank robbing nemesis in the sewers, aided by new superpowered pals – but Arthur must face this enemy alone. Dot and Overkill question a piece…

Tick and Arthur, with the help of Tinfoil Kevin, confront the Donnelley brothers and rescue their precious hostages. Walter starts acting oddly. Dot and Overkill storm the Duke’s lair.

Holmes and Watson uncover the identity of a serial killer whose case has gone cold and find themselves butting heads with the NYPD.