The signs of an approaching spring are everywhere. While Heidi is playing with Joseph, she notices that the firs are shaking off the snow and beginning to sound in the wind, primroses start to show over the snow and avalanches sound in the distance. While riding a sledge, two kids from Delfli challenge Heidi and Peter to a race. Rain catches them on their way back home and makes the snow melt faster. Ohi comes to their encounter and saves the kids from an avalanche in the last minute. Spring has arrived to the mountain.