It’s ‘Show and Tell’ time at school and little Noah is very excited. He’s brought in his new pet to show the class and he can’t wait to see their reaction. When his turn arrives all of the children shriek as Noah’s pet turns out to be a shark called Mark! Mark the shark is very friendly but he’s certainly not welcome in the classroom!

Noah soon discovers that having a pet shark is actually quite troublesome. It causes problems on the bus, in the garden, in the park and especially at the local swimming pool!