Gilbert and Friends: April Fool! Watch Out at School!

It's April Fool's Day and Gilbert can't wait to play tricks on his friends. He's just getting his day started when his friend Patty tells him his shoes aren't tied. Oh, good trick. Every step of the way though everyone has a trick to play on Gilbert. Things really aren't going the way Gilbert had planned. In fact, even his own mother puts a gummy worm in his lunch. Gilbert makes a plan. Now he has the best April Fool's Trick Ever to play on Lewis. I wonder what it is?