Complex sentence: Alistair also ordered Professor Miles Warren to create genetic clones under Silvermane's orders in the two-part episode, "The Return of Hydro-Man", and worked for the Red Skull in the three-part episode, "Secret Wars".
Split into simpler sentences: Alistair also ordered Professor Miles Warren to create genetic cloning in the two-part episode, "The Return of Hydro-Man" under Silvermane's orders. Smythe was also involved as a villain working for the Red Skull in the three-part episode, "Secret Wars".