Episode list

Decades after their childhood experiences passing through a mysterious 'time barrier' that could transmit people into the past and the future, two adults - Simon Randall and Liz Skinner - encounter two youths from the 1980s, Neil and Jade... and realise the barrier is open again. Following them through the barrier in search of a missing friend, they find themselves many years into the future, when over-population has brought the Earth to its knees. So a radical reform has been undertaken - a mass culling of parts of the population known as the Death Lottery. Not everyone supports this idea. Rebels know as refusers battle the government and the sinister Enforcement Bureau - and Liz discovers that her old friend Charlotte may be responsible for the whole thing.

Escaping from the future, our heroes find themselves in the distant past... sort of. It's 1953, but a very different 1953 from the one we're used to. The UK has still not recovered from a second World War that lasted an extra year longer than in our history. The Americans had to step in to save the besieged country, dropping another Atom Bomb on Berlin. They are now running the grateful UK as if it is part of the US and are now expanding their empire against the growing might of the Soviet Union. The Time Barrier has been discovered and is being studied by a team of scientists, whilst strange items are being smuggled through from different time periods - weapons perhaps, traded with the future? Spivs and racketeers run the streets, and the US Government plan highways through time... And behind it all is a very familiar face.

Finding themselves in 1914, Simon, Liz, Jade, Neil and Charlotte realise that this isn't an alternate phase of history. This is really their past and anything they change could have serious repercussions. While Simon and Neil watch for the barrier to return and Jade tries to ensure Charlotte doesn't tamper with the past, Liz insists on attending the meeting of local suffragette, Flora Walsh. When Simon realises the real reason why Liz wants to meet Flora, he's shocked. Flora is Liz's great grandmother. And Liz knows she is destined to die the following day. All Liz wants to do is spend that final day with her. What's the harm in that?

The time travellers find themselves in an alternate world, 30 years in the future. The people here are living simplified 'back to basics' lives, having been told they've averted the ecological tipping point by radically changing their way of life. However, the team soon find out that the world governments are still preparing for a catastrophic environmental disaster that will alter the planet forever. Only the chosen few will survive, so Liz, Simon, Jade, Neil and Charlotte must work together to find the barrier and escape certain death.