It's Mark's bedtime, but he begs his mom for just five more minutes! When his five minutes are up, he keeps coming up with something new to do that will take him just five more minutes. Each new thing is more outlandish than the last, including teaching a dinosaur how to tie his shoes and brushing George Washingston's teeth on Mount Rushmore! He finally goes to sleep, but when his mother comes in to get him out of bed in the morning, he naturally asks for just five more minutes!