He Who Dares: Downing Street Siege

Following his actions in He Who Dares, Christopher Lowe is summoned to 10 Downing Street to be dishonourably discharged from the SAS for disobeying a direct order.

During Chris' time in Number 10, however, the building is taken siege by a familiar foe, but this time, Christopher Lowe has no backup, no weapons, and those he's trying to help have turned against him.