Lizzie's fantasy almost comes true when she is paired up with Ethan Craft in a CPR class at school, but he's so dense that the teacher chooses Tudgeman instead to give Lizzie mouth-to-mouth! Lizzie, Gordo and Miranda realize they are about the only three in school who haven't seen the latest blockbuster movie Vesuvius: The Eruption, which is rated R, and they're determined to get in to see it. When their parents all say ""no"" to their arguments, Gordo decides they should say they are going to play miniature golf, then go see the film. Lizzie is very nervous about lying to her parents, but she pulls it off with ease.

The trio can't get past the ticket-taker, though, and can't slip in the back, so they mingle with the crowd as it is departing a showing and sneak in that way. While at the concession stand, they notice a man choking.