Case of the Physical Fitness Challenge, Part 4 | NASA SciFiles

In The Case of the Physical Fitness Challenge, the Tree House Detectives are excited about their school's participation in the upcoming President's Challenge. All the detectives are hoping to be physically fit in time for the competition so they can win the Presidential Physical Fitness Award. Therefore, when RJ has difficulty keeping up with the fitness routine, the detectives go into action to help him get back on track.

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