All aboard for the happiest 40th birthday party on Earth! Kendall, 40, loves the Disney Parks so he insisted upon counting down the very best attractions on his big 4-0! Tune in to find out just how many he had to include! Also, #emotional discussions about mortality, Bad Jokes (and other Kendall-picked segments), themed costumes, short distance dedications, and more! It's an episode 40 years in the making!