After locating the first segment of the Key to Time-wasting, the Doctor, Unsexy Romana and K9 begin the hunt for the second one. They land on a planet called Halifax that's supposed to be cold and dead but actually has a pretty lively civilisation overruled by a hammy pirate guy, and the population fears a bunch of spooky psychic dudes who turn out to be not that bad and stuff (I mean, they're wearing the colour yellow - when has anyone wearing yellow ever turned out to be the villain?). Turns out that the reason why Halifax is more lively than expected is because the pirate has materialised a slightly larger yet hollow planet called Xanax around it to drain it of resources. Not sure why it's a bad thing in this case if Halifax was supposed to be cold and dead, but it turns out the pirate'