After twenty years of being bionic together, Steve (Lee Majors) and Jaime (Lindsay Wagner) have finally decided to tie the knot. With only 24 hours to go until the big day, Jaime is struck down by a mystery virus which threatens not only her incredible powers but her very life. Meanwhile in the Bahamas a US Embassy is held to ransom by rogue terrorist-for-hire Miles Kendrick and a crack commando team, men so ruthless that they are prepared to go nuclear if their demands are not met. Could it be that the two events are in some way connected? With his own bionics beginning to break down, will Steve be in time to save millions of innocent lives - and his future bride?