Arthur and his friends try to make Ladonna feel better about her family's move to Oregon.

For Arthur's great-grand uncle Theo's 85th birthday, the Reads and Buster go to his farm in Ohio to celebrate. Arthur learns that his cousin does not have as much as common with him as he expected, D.W. has continual run-ins with a lizard and hangs out with uncle Theo, and Buster feels like he does not belong at the family reunion.