Neil Dudgeon plays a desperate dad trying to protect his children from the plague, while Abby (Julie Graham) stumbles into what looks like a Utopian community.
What time is it? It's a tougher question than it looks, and one that physicist Brian Cox explores with his usual wit, probing the nature of space and time in a mind-expanding programme.
You may not have come across gharials before, and if not then this is timely because they're in danger of becoming extinct. Natural World charts the decline of the Indian river croc.
Horatio Caine (David Caruso, left) investigates a straightforward bank robbery and murder, but don't miss the opening sequence - you'll laugh out loud in shock.
There are just three rounds to go and the competitive side of the tribal sports series is becoming stronger. Beautiful surroundings, plot twists and challenges: what more could you ask for?