After a blackout at Space City, a missile gets through the radar blackout, and is heading towards Space City with a dangerous cargo...

The crew of XL5 encounter Boris and Griselda the space pirates on the Companion 12 space station.

While babysitting Commander Zero's son, Jonathan, Venus tells him story about when Fireball XL5 encountered a group of space pirates.

As Steve celebrates the anniversary of his family's circus act, Venus falls asleep and dreams of a plot devised by Mr and Mrs Space Spy and the nomadic Monadians to take over the Earth…