1. DAY ONE
At 8.45am, every child in the world suddenly stops, chanting the words "we are coming" again and again.
2. DAY TWO
Torchwood are forced underground, as the government takes swift and brutal action. With members of the team being hunted down, only Lois holds the key to Torchwood's salvation - but she is helpless as her superiors make plans for the mysterious Floor 13.
3. DAY THREE
The eyes of the world turn to Britain, as the 456 announce, 'We are here'. As a pillar of fire descends upon London, the members of Torchwood must battle to protect their own families, as the fight gets personal.