Young meg must save her father from another planet, where things are very unusual. She must travel using the method of the tesserwell. This method can be thought as a wrinkle. With the help of 3 witches, her brother, and a boy she may have feelings for, she must save her father. But when the mission takes a turn meg must save her brother from the creature unknown. But referred to as "It " . Her brother is clever, and smart but can he outdo this thing?, or with it be too late for her father, and brother to be saved.