Mackenzie Arnold 4: Game PlayMeet Matildas star goalkeeper Mackenzie Arnold as a kid and follow her football and friendship adventures. Mackenzie Arnold loves playing football with the Seaport Strikers. As the team works well together on the pitch, a surprise challenge at Macca's birthday party leads to tension among the friends. What starts as a friendly football game at the park soon spirals out of control! It's Macca versus Ryder, with the Strikers split down the middle.