Sally is afraid when she is stranded above the viaduct with a storm brewing. William sees that Sally is swaying in the wind and calls for help. Her only chance of rescue is Charlie, but he will have to cross the viaduct, and he is afraid of heights. Charlie makes his way slowly across the viaduct, fighting his fear all the way. He reaches Sally, and fixes her clamp back on the cable so that she can get back to the junction safely just as the storm breaks. Charlie is a hero!