Shrek has settled down to married life with Fiona. The triplets are a year old now, and life has become a boring routine. Rumpelstilskin offers Shrek some hope: a return to his carefree days, in return for one day of Shrek's life. Unfortunately Rumpelstilskin picks the day Shrek was born, meaning he does not exist, and no one knows him. With only one day to get a kiss from Fiona to break the spell, Shrek has his work cut out convincing his friends that they are his friends.