Fenton shoots a series of test commercials, but mistakingly creates demand for a nonexistant product. In desperation, he uses a new bubble gum invented by Gyro, who has not had time to test for side effects.

Roseanne tries to get a few minutes of relaxation in the bathtub, but she ends up getting constant interruptions from her family - and a fantasy about two hunks.

NOVA studies hurricanes - the lurking giants waiting to destroy many coastal areas - by flying straight into one. Scientists hope that such close-up studies will supply the data to make better predictions.

England, the 1940s. The TARDIS brings the Doctor and Ace to a secret naval base during WWII. There, the time-travellers battle vampiric Haemovores and an ancient Viking curse!