Lyndon's alien siblings are all coming to town to meet him because they haven't seen him in a few years. The reason they haven't seen each other in a long time is unclear, but despite the fact that they annoy Lyndon, they manage to get along much better now, and Lyndon still loves his siblings. Lyndon's siblings tend to get along well with Joseph, Lindsey, and the rest of the crew, and they appear to be their biggest supporters.