What if Chameleon wasn't just a code name? What if it was a chosen name? Chosen before her people fell. Now she's hiding on Earth, her family god knows where and aliens invading her school. What is a timelord girl to do?

Cammie's dad was not her dad, in fact her dad was a time-lord, what happens when they meet.

Nothing is ever impossible. Especially when you have the Doctor and a group of young spies-in-training. Mix them together with some teenage hormones, action, a little spying, and the Sonic Screwdriver, you've got a very long list of 'impossibilities.'