John Simm and Philip Glenister

Critically acclaimed actors, John Simm and Philip Glenister forged their close friendship on set of the iconic drama, Life On Mars. Seventeen years later, the best mates have teamed up for an altogether different kind of adventure - their DNA journey - to delve into their family histories.When DNA tests reveal unexpected surprises, side by side, the pair navigate their way around revelation after revelation with searing honesty, humour and supportiveness.