My Grandma's a Ninja

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Ethan discovers his grandma is a ninja after she suggests a zip line to school, leading to a series of exciting school events. Her unexpected appearances, including a dramatic show-and-tell, make Ethan popular as she teaches karate and backflips. However, when she deflates his soccer ball, Ethan wishes for a normal grandma. Ultimately, he learns to appreciate her unique skills when he uses his newfound karate moves to help his team during the championship game, realizing that her extraordinary nature is a gift.