Deedeemensional / Magmanamus / Maternal Combat

S1 E1: "Dee Deemensional":  Dexter sends Dee Dee back in time to save him from attack when he releases an inter-dimensional monster. But the Dexter of the past doesn't believe Dee Dee until it's too late and, once again, he must send Dee Dee back in time to save him. / "Magnanamus": The noise of the earth's surface dwellers awakens a giant lava creature, Magnanamus. Seeking some quiet and a little shut-eye, the lava beast starts a destructive rampage. Monkey must defend the city in a fiery, ground shaking battle with the molten monster. / "Maternal Combat":  Mom is sick so Dexter builds a Mom-Droid to take care of motherly things a little boy needs. When Dee Dee snatches away the control and makes havoc, Dexter builds a super Mom-Droid to fight Dee Dee's rouge Mom-Droid.