A strange bit of information sends Dangerboat in to lockdown. Dot frees Overkill of a burden and joins him on a mission. Meanwhile, Superian takes Arthur's advice - badly.

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 of furniture and learn one of The Duke's secrets.