While trying to stop a extremist group who are trying to overthrow the British government by flooding the country with counterfeit money, Dempsey and Makepeace try everything in there power to stop them.

Makepeace poses as reporter Debby Smith to get close to hoodlum 'Marocco' Jack and ends up saving his life from a rival gang. Dempsey joins Marocco's gang by posing as an American driver called Andy Sallapuccio, whom they need to pull off two simultaneous jewel heists. Meanwhile Spikings is facing complaints from upstairs that might lead to SI 10 being shut down.

Dempsey and Makepeace witness a young woman being run down on the street. She turns out to have been a model with connections to drug trafficking and members of parliament.

When Dempsey is framed by another cop for something he didn't do, Makepeace risks her career to prove his innocence.

Dempsey and Makepeace go undercover as Middle East terrorists to find an arms dealer supplying several terrorist groups in Britain, Can they find the dealer and stop him.

A murderer who is obsessed with Makepeace threatens to kill his hostage within 24 hours if Makepeace will not meet with him.

Dempsey and Makepeace are targeted into a deadly trap which involves both jewels and bank robbers who set the trap, to even the sides Dempsey get help from a boxer who Dempsey sent to jail to help him out.

When Dempsey is nearly killed during an investigation, Makepeace resigns for good from the police force.