Based off the Chameleon Circuit song "Exterminate, Regenerate" you play as The Doctor. Davros has turned all the humans into slaves, and you have just regenerated. You have to find your scattered equipment and stop Davros. Good luck. (There are extra rooms, don't become confused, I have QDK lite and wanted to use all 15 rooms. If you know nothing of Dr. Who, look up some of the items and places to understand the game a little bit better.)
Legacy Player: The "Play online" link above uses the new Quest Viva WebPlayer, which is currently in Beta. In case of issues,
you can try the old WebPlayer.