It's Christmas day. Mum has made a fantastic Christmas dinner. The boys are delighted that Grandma, is coming round, but horrified that dad's (Martin's) mother - 'Horrible Grandma' - is coming too. Horrible Grandma turns up with her equally horrible dog, Boudacea, which has to wear an oxygen mask. Horrible Grandma hates mum's 'horrible dry turkey', and mum is distraught when Horrible Grandma brings her own turkey with her to eat. Dad and the boys are jealous, as they too secretly hate mum's dry turkey. After dinner, tensions mount, as the two grandmas have an argument that develops into a proper grandma fight. And then Jim turns up, dressed as Father Christmas...

A celebration of Robert Popper’s comedy Friday Night Dinner, to mark its 10-year anniversary. The sitcom, which coined the catchphrase `lovely bit of squirrel’, centred on the fortunes of the eccentric Goodman family and their even more surreal neighbour Jim. With behind-the-scenes material and never-before-seen outtakes, this documentary features interviews with stars including Tamsin Greig, Paul Ritter, Simon Bird, Tom Rosenthal, Mark Heap and Tracy-Ann Oberman. It also includes the thoughts of celebrity fans Claudia Winkleman, Joe Thomas, David Baddiel and Jessica Hynes.