Watch Twenty Twelve Season 1 in Australia

With time ticking inexorably downwards the marketing team come up with a major public event to mark the 1,000 days to go milestone. A huge clock designed by a contemporary British artist. The only problem is that the clock has a potentially disastrous design flaw which no-one seems to have noticed.

A visiting group of dignitaries from Rio (the Olympic host in 2016) is in London for the week. For Head of Deliverance Ian Fletcher and his team the mission is simple. They have to get them across London in time to meet Lord Coe for an official reception at the Olympic Stadium. What can possibly go wrong?

It's another challenging week for Head of Deliverance, Ian Fletcher and his team. Roman remains have been discovered on the site of the Aquatics Center, forcing them to contemplate radical last minute modifications to the design of the building.

Dave Wellbeck is an ex-athlete, double Olympic silver medalist and in theory a natural choice as Brand Ambassador for Raising the Bar - a scheme to get young people inspired by Olympic ideals. He's hard working, conscientious and loyal but the truth is that he has about as much charisma as a dimmer switch. Ian and Siobhan have different views on how to deal with the problem.

There are only three applicants for the post of Curator of the Cultural Olympiad so how difficult can it be to select the best candidate? Ian and the team are about to find out when they are forced to go through a series of spectacular u-turns.

The decision to hold equestrian events in Greenwich Park is one of the most controversial choices made by the Olympic authorities. Among the local residents against it is self-style maverick film director Tony Ward. Over thirty years have passed since his one and only successful film, so he's had a lot of time to think about how angry he is and to plan his campaign of protest.