Mr. Spaceship

In the distant future is at war with "Yuks", an alien life form which doesn't use mechanical spaceships nor constructions, instead, it relies on life forms. The war has been going on for a longer than most can remember, and mankind hasn't been able to come up with a solution against the life-form based ships and mines that the Yuks use. One day, a team of researchers led by Philip Kramer decide to build a spaceship which is powered by a human brain.