Having grown tired and bored with life as a mild mannered accountant, Arthur has decided that it's time for a change. Determined to put all the numbers, deductions and IRA's behind him, he tells his boss, Mr. Fishlighter, that he's giving up accounting in order to pursue a higher calling - being a superhero! And ignoring Fishlighter's warnings about the fate of a previous employee who cashed it all in to be a crimefighter, Arthur dons his Mothman flying suit, one that makes him look a lot like a giant bunny, and heads off to pursue "the noblest profession." Meanwhile, just as Arthur is embarking on his new career, a superhero calling himself The Tick arrives in town to fight crime. At a bar where he is explaining his dream of living the hero's life, Arthur overhears a pair of evil commandos plotting to revive an old Soviet super weapon - code name Red Scare - to uses against the US Postal System. But when the Red Scare commandos try to teach him a lesson he will never forget, Arthur is rescued by The Tick and his superhero friends, Batmanuel and Captain Liberty. And with Arthur by their side, The Tick and company resolve to stop the Red Scare. Now working under The Tick's wing, Arthur quickly realizes just how ill prepared he is to make the leap from accounting professional to Mothman. Though Arthur wants to quit, The Tick asks him to interrogate a captured Red Scare operative. And upon learning that the weapon was originally programmed back in the 1970's to kill then-President Jimmy Carter, The Tick presses Arthur into service to save the ex-president and thwart the Red Scare before the completion of its decades old mission.