S1, E1: Series revisiting the famous Survival wildlife film archives, using state-of-the-art technology to give the footage a new vibrancy. The first of the new episodes follows three tiger cubs who enjoy sponging off mum a bit too much and just will not leave home. Over the course of two years, cameras watch their antics as mum tries to teach them to hunt and stand on their own feet. It is an uphill struggle, but she is determined.