Inspired by a television show featuring a kickboxing heroine, a woman named Kathy (Julie Suscinski) enrolls at a martial arts school in this low-budget action-comedy. When Kathy learns that the school is a front for drugs, prostitution, and blackmail, she uses her new skills to take the bad guys down.

While on a stakeout, hardboiled cop Eddie Boone gets injected with a dangerous new designer drug causing nightmarish side effects. As he searches for his missing partner, Eddie discovers the urban streets full of mutants, monsters, and mayhem orchestrated by the mastermind behind the lethal narcotic.

In this sequel, two juvenile detention officers must escort a group of criminally-inclined urban kids to the country where they are being forced to renovate a shelter for teens as punishment for their crimes. After one of them is shot by a local, the survivors seek refuge in the home of a voodoo woman, where they mistakenly summon legendary clown-faced demon Killjoy who begins hunting them down one by one.