The two universes began to clash in 1985, after Dr. Walter Bishop (John Noble) stole the parallel universe version of his son, Peter, following his own son's death.
这两个宇宙在1985开始发生冲突，Walter Bishop博士（約翰·諾伯饰演）偷了他的儿子平行宇宙版本的彼特后，出于他自己的儿子之死。