The cool kids make fun in class of shy Paul Baumann when he presents his unusual pet as a harmless python, an heirloom form his father. When he brings it in for a checkup, Dr. Philip Hansen finds it's alas its lethal lookalike, the green mamba, but fearing to have it confiscated, the boy sneaks out, bumps into Jonas and so the serpent escapes. Mayor Vinzenz Grieshaber mobilizes the fire department, whose only major contribution proves the truck.
—KGF Vissers