Pursued by bounty hunters, the Sixth Doctor and his shapeshifting companion Frobisher run into old acquaintances Glitz and Dibber — notorious rogues who have become involved in something big: a covert government agency on Vandor Prime is forcing the pair to turn their criminal talents to its own ends. The Doctor and Frobisher are soon drawn into the mysterious scheme themselves — but what game is truly being played by the authorities? How is the group of Ogron raiders involved? And who is so desperate to see the Doctor dead?