When Danny trips over a hurdle on the track one day, hoping to impress Sandy, she decides she likes him after all and quickly dumps the Jock she's been dating.
Danny and Sandy go to the High School dance together, and make it to the final of the 'Dance Off' but Cha Cha (with the naughty reputation) manages to steal her place, and claim the trophy. Danny is soon dumped again at the Drive-In movie when he tries to take advantage of her, and then feels sorry for himself.
Soon, it's the big race - T-Birds against the Scorpions at the old reservoir. Kenickie gets a bang to the head, so Danny has to drive Greased Lightning. The Scorpion who looks like Bryan Adams knows some dirty tricks, but Danny wins the race, smashing both cars, but winning the pink slips. Sandy looks on, knowing she wants him back, and calls on Frenchie for her help.
It's Graduation day, and they're all at a fairground. Kenickie is about to propose to Rizzo, and learns she isn't pregnant, but wants to propose anyway.
Danny turns up in a letterman jacket to show Sandy he wants to change - while Sandy turns up in leathers. They sing and dance a bit because they are the one they want, then they go together like sha-wop-da-woop-de ... you get the idea. Then Danny and Sandy get into a revved-up Greased Lightning and take off like a jet engine towards the clouds, like you do.