Teenagers Frank and Joe Hardy are supposedly "retired," but there's a new mystery in Bayport that needs their expertise - and fast.
Starting with a bank heist, a series of alarming pranks have popped up around Bayport. Ultimately harmless, the pranks turn out to be the work of Seth Diller, an amateur filmmaker who plans to make "zillions" from his reality-horror flick, which he'll use to help out his brother, a wounded Marine.
But after the Hardy brothers put a stop to the Panic Project, there is a new outbreak of Seth-life pranks - only these have definite victims. All signs point to evidence of a crime gang in Bayport, and Frank and Joe undertake the most dangerous investigation they've ever encountered. It's up to them to save their town - and themselves - before the Red Arrow gets to them first.
After a series of unfortunate (yet harmless) pranks, it looks like Frank and Joe have caught their suspect surprisingly early. Their classmate Seth Diller has taken his love of filmmaking a bit too far. But shortly after Frank and Joe confront Seth, there are fresh outbreaks of Seth-like pranks. Except these aren't as harm