1) A princess is cursed by an evil fairy to prick her finger on a spindle and fall into a deep sleep at the age of 15.
2) On her 15th birthday, the princess pricks her finger and falls asleep, putting the entire kingdom into a deep sleep for 100 years.
3) A prince comes upon the enchanted forest surrounding the sleeping kingdom 100 years later and awakens the princess with a kiss, breaking the evil spell. They get married and live happily ever after.