Jerry rescues Spike the dog (in only his second appearance in the series) from the city dogcatcher. The brutish bulldog offers his services as bodyguard for the little mouse, telling him “Thanks, chum. I’m your pal for life! Anytime you ever needs me, just whistle.” With safety just a whistle away when Tom is on the prowl, Jerry feels safe at last. The plan works wonderfully, with Spike finding all sorts of clever ways (which make for great sight gags) to clobber Tom. Things go awry, however, when Tom gives Jerry a jawbreaker covered in glue, making it impossible for Jerry to pucker up. It’s all downhill from there for Jerry and his new pal Spike!