Tom and Jo Dwyer had a reputation for playing tricks - and getting detention. They didn't seem to care about that, so long as they made their class laugh. That was until someone began to turn their tricks against them, and it was no longer funny. Especially when the police became involved and that threatened the reputation of their policeman brother, Ted. Tom and Jo loved their brother, but their uncle Eddy Dwyer, the man who had taken them in as children, was another matter. They hated him, and suspected him of trying to discredit them. When their brother disappeared, they went to find him - sure their uncle was involved. They helped put their uncle in jail, but Eddy Dwyer had a lot of friends, and he wanted revenge.