Basic outline: Doris Trent is a 68 year old grandmother who is enjoying her retirement. One summer, she decides to have a day out at the nuclear power station in Sellafield. Becoming ever more health conscious in her advancing years, she takes a banana for her packed lunch.
Also along on the trip is former A Team star Mr 'B.A. Baracus' T, who just happens to be shooting a Snickers advert in the area.
Doris and Mr T get separated from the group, and someone manage to end up in the core of the reactor, just as it's being switched on in time to meet the dinner time Kettle rush.
To cut a long story short, the radiation transforms Doris, her banana and and Mr. T into one Hybrid Hero - B.A. Nana.
Combining the strength and bravery of Mr T, the protective skin of a banana, and the vicious gossiping tendencies of Doris Trent, B.A. Nana is a force you cannot underestimate.
Denouement: They defeat ISIS and everyone lives happily ever after.