Max and Maple are tasked with watching their bestie Thelma's plant, and disregard her "boring" instructions and take it on a wild adventure. As they recognize the mess they made of Thelma's plant, she shows up-- Max and Maple have to learn that being a good friend means being an honest one that owns up to their mistakes.
When the UnMesso, Grandpa Tony's latest cleaning contraption, spirals out of control and sucks up Maple’s treasured umbrella, it’s up to the can-do kids to rally together and save the day!
"Sir Max" and "Her Mapleness" are playing capture the castle in the backyard to see which of them is going to be crowned royalty that day. But when Max takes the game too far and gets stuck, he has to depend on his sister to come to his rescue.