Spider-Man 2017 Episode 9 - Ultimate Spider-Man Episode Title:Ultimate Spider-Man.Episode Description:While trying to get the spider from the experiment that granted Peter his powers, Spencer attacks Oscorp with a Spider-Slayer that he previously stole from Norman, only to bump into Miles outside of Oscorp. One such spider called the Electrolis Arachnatis escapes and bites Miles, giving him powers as well. Spencer is in allegiance with Raymond, who somehow got out of prison so that they can experiment with the eight spiders as part of their plot against their mutual enemy Norman. Peter has to stop Miles from going all out, which leads to both Spencer (on Raymond's behalf) and Alistair (on Norman's behalf) attacking Miles' neighborhood with giant Spider-Slayers.