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.

Tick and Arthur fight a beaurocratic battle to save an innocent creature from AEGIS experimentation. Dot tours an AEGIS open house, as Overkill visits an old friend.

Tick and Arthur join the Flag-5 and undergo initiation with their fellow team members. Walter and Dot throw a wrench into Arthur's dream come true. The Duke makes a deadly move on AEGIS.

The Tick, Arthur, Dot, and the rest of the family must battle The Duke and AEGIS itself. Miss Lint reveals her true goal and Superian weighs the pros and cons of accidental genocide.