Optimus, Elita-1, and Sentinel landed on Archa Seven on rumors of the Decepticon ship crashing there. Optimus objected as he said there were reasons organic planets were off-limits to Autobots, but Sentinel twisted his arm by emphasizing that the Decepticons were chronic hoarders of energon, and that if they found the ship they were bound to be set for life. Along Came a Spider