Buffoonish Ernest and his dimwitted pal Abner unearth a huge cannon reputed to contain the crown jewels of England.

This morning they were playing ping-pong in the hospital rec room. Now they’re lost in New York and framed for murder. This was never covered in group therapy.

A young girl witnesses her brother murder a man through a reflection in a mirror. Twenty years later the mirror is shattered, freeing his evil spirit, which seeks revenge for…