The sandpiper's game

Sandy, and injured bird, is saved from drowning by young twins, Kate and Kurt, who live at the seashore. As Sandy heals under their care, he learns that the twins are runners on their school's cross-country team, and that they are unhappy with their speed on hills. Grateful for his rescue, Sandy invents a game that teaches the twins how to run faster. Better yet, he opens their minds to his vision of how to improve at whatever you do.