Complex sentence: Fed up with WALL-E's disruptions, EVE takes him to the escape pod bay to send him home, but they witness GO-4 dispose of the missing plant by placing it inside a pod which is set to self-destruct.
Split into simpler sentences: Fed up with WALL-E's disruptions, EVE takes him to the escape pod bay to send him home. There, they witness GO-4 disposing of the missing plant by placing it inside a pod which is set to self-destruct.