The second episode of David Tennant's new British comedy drama, There She Goes, premieres tonight on BBC Four at 10pm.

The five part series centres on a severely learning disabled nine year-old girl Rosie (Miley Locke), her dad Simon (David Tennant), mum Emily (Jessica Hynes) and brother Ben (Edan Hayhurst).All the stories and characters are drawn from the real life experience of writer Shaun Pye, whose daughter was born in 2006 with an extremely rare and to date undiagnosed chromosomal disorder. Each episode shines a light on day to day life with Rosie - unique experiences from simply trying to take her to the park to trying to explain that every day isn’t her birthday. A second timeline set in 2006 shows the effect having a severely disabled child had on the family unit, how it threatened to disintegrate but ultimately brought them even closer.

Episode Two - Bubble Chess
It’s bath night for Rosie (Miley Locke) which, as usual, ends in bubble-filled carnage as both Simon (David Tennant) and Emily (Jessica Hynes) battle to get an unwilling and slippery girl out.
Emily strategizes that she can trick Rosie into getting out by putting the bubble bath tantalisingly out of reach and secretly waiting outside to pounce. This game of 'bubble chess' swings back and forth as Rosie works out how to stay one step ahead of her mum.
In the earlier timeline, Emily struggles to connect with Rosie, whereas Simon has a bonding moment when she does the biggest poo he’s ever seen. Tensions build between them over whether, given a magic wand, they would change Rosie.

Catch up with the series so far on BBC iPlayer here