Frobisher was forced into giving his daughters up for "innoculation" so shot himself and his family instead.
Army moved in to round up kids, very traumatic scenes of children being dragged away from parents.
jack, sciency man and evil govt woman get together to try and stop the 456. Solution is to use jack's grandson to channel a frequency back at them, knowing it will kill him.
gwen and Reece try to save Ianto's neice and nephew.
Frfobisher s seretary used the contact lens to get revenge on prime minister.
ack dissapears for six months then meets with Gwen to say goodbye and heads off into space, never to be seen again...?