A classic episode. It starts with George wearing a lion costume. It's Halloween, and, despite Dick's protestations, it is decided there should be a costume party. All kinds of people show up in costumes and then Harley shows up as a really bad ghost. He says he was watching TV and saw a news report that the Martians had invaded (the TV station is running War of the Worlds, of course). Pretty soon everyone at the party believe there is an invasion. Michael, who knows better, wants this to go on. Dick, wearing a tin man outfit, does what he can to change people's minds but he hold no credibility with his friends and neighbors. Of course, it has a great ending having to do with fluorescent cattle.