A prequel series, set 100 years before the original Star Trek series, which focuses on the early years of Starfleet, leading up to the formation of the Federation and the Earth-Romulan Wars. The series is set aboard the Earth ship Enterprise NX-01, captained by Jonathan Archer.
A diplomat is nearly assassinated. In order to save him, a submarine is shrunken to microscopic size and injected into his blood stream with a small crew. Problems arise almost as soon as they enter the bloodstream.