During Irma Langstein and Howie Hardy's wedding, an ancient artifact from April O'Neil's antique shop unleashes the ancient Ho-Chan. The four Teenage Mutant Ninja Turtles, along with Casey Jones and April, must confront him.
The Ghostbusters receive an alert about the release of the ancient ghost; apparently, it's not the first time.
Ho-Chan will reunite three henchmen to form his elite and will also manage to unleash several extradimensional demonic beings.
