Killer Poop 2: Amityville Poo

The backstory of the Killer Poop of how he became who he is and where he came from as he kills anyone he runs into.

Nanoshark

Scientists using nano technology to shrink objects to microscopic size use their science on a deadly shark, which is injected into a person's bloodstream in an attempt to cure a rare blood disorder. When the shark begins to do more harm than good, a team of adventurers enter the bloodstream in a shrunken submarine in an attempt to kill or be killed by the smallest great white of them all!