Sunshine is a bittersweet story of three generations of the Crosby family.

Bob (Bing) Crosby grew up to be one of the most likeable people around, and his natural wit and optimism were infectious to those around him. The only negative trait in Bing's life was his inability to resist gambling a few quid on the occasional bet.

Bernadette, his childhood sweetheart and mother of their son, Joe, loves Bing for the person she's known all her life and, although she doesn't approve of and is often infuriated by his casual betting, she always reluctantly forgives him.

Bing's dad, George, knows that he shares a special bond with his grandson, Joe, and even though Joe is too young to realise this, he certainly feels it in his heart.

When Bing's gambling develops into something more serious than the occasional bet and the risks he takes become greater, it's no longer just a few quid that Bing stands to lose - potentially, it's everything.

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