Deep in the gap between the stars, the TARDIS is damaged by a temporal mine. It's not life-threatening, but the Tenth Doctor will need a while to repair the damage. But he's not alone. The strangely familiar-looking Christina thinks the Doctor has arrived in her bed and breakfast, somewhere in Wales. In fact, the TARDIS seems to have enveloped Christina's entire town – and something else is trapped inside with it. A violent, unnatural storm threatens them all and – unless it's stopped – the entire universe.