Sandy and Danny spend a summer in love, but think they will never meet again. That is until Sandy unexpectedly joins Danny's high school to find that he is not exactly how she remembers him. Most famous for the 1979 film version starring John Travolta and Olivia Newton-John, Grease has become a firm family favourite, not least for its songs which include Summer Lovin', Hopelessly Devoted To You and, of course, Greased Lightning.