Heidi has just lost both parents. His grandfather entrusted to a sober man who lives alone in the Swiss Alps. Heidi, a girl power and heat, succeeds in conquering the heart of this solitary man. Become inseparable. Heidi loves the mountain and likes to spend time in the company of Peter Shepherd. Heidi’s aunt, a woman who works in the city decide to send her granddaughter to Frankfurt, in a family rich. Heidi will take the company Clara, a young woman convicted in a wheelchair. Between the two girls will knock off a beautiful friendship. But grandfather and lacks enormous mountain.