Chris takes a walk on the wild side when he is hired at the city zoo. Despite the friendly staff, animal lover Chris is not happy with the run-down facilities. Soon, this mischievous assistant unlocks all the cages, creating mass hysteria as the mild-mannered creatures wander into local toy shops and homes.
Young Chris Carlyle has taken care of a pet wildcat ever since the animal was a cub. But now, Chris and his family are leaving their farm and moving to the big city... and the boy's parents won't allow him to keep his beloved feline companion with them in their new home. The heartbroken and reluctant Chris finally turns the cat over to the zoo. Although all the animals are treated well by Dr. Del Hartwood and his caring assistants, the zoo's facilities are outdated and inadequate for the large number of creatures there. Meanwhile, Del's requests for more financial help from the city council continue to fall on deaf ears. Upset at the animals' plight, Chris unlocks their cages and lets them run loose through the city streets. Hilarious confusion ensues until the situation is eventually brought under control.
108 animals used in the film were trained by director-producer Ivan Tors at his "Africa U.S.A." ranch near Palmdale, California.
The scenes that take place at the zoo were filmed on location at Griffith Park Zoo in Los Angeles.
Color by Metrocolor.
Jay North played Dennis the Menace on TV.
Additional cast: Dorothy Green (Anne Carlyle); Karen Green (Wilma Carlyle); John Milford (Sergeant Freebee); Merritt Bohn (Chief of Police); Jimmy Stiles (Tim); Dal Jenkins (Kookie); Gordon Wescourt (Ribs); Gary Judis (Greenie); Wayne Thomas (Newscaster); and Phil Arnold (Man in Tub).
Additional credits: The Standells (song performers, "Zebra in the Kitchen").