After a supposed IRA bomb took the life of a Protestant revererd and prominent leader within the Northern Irish Unionist camp, Lord Eames, the Undersecretary for affairs in Northern Ireland, orders a team from the British Special Air Service to hijack Addington to London in hopes of convincing him and Sinclair to protect Oliver Montcalm, the new leader of the Unionist, and his family during his trip to North America for secret negotiations with the representatives of the IRA. This task is complicated by the resurfacing of supposedly dead two militant members of the Unionist camp in Toronto, whose modus operandi fits perfectly with the means by which the good revererd was killed.