Dave is facing the seemingly impossible job of bringing up four kids alone after the sudden death of his wife. And things get even more complicated when he falls in love with his wife's best friend, Sarah. Single Father asks how soon is too soon to fall in love again?

David Tennant, Suranne Jones, Millie Innes, Chris Hegarty, Robert Dickson, Warren Brown, Neve McIntosh, Mark Heap, Laura Fraser, Isla Blair, Jenni Keenan-Green