Magog is forced to flee. He forces the Doctor to at last reveal the secret of the TARDIS. The Doctor appears to comply, but fools Magog into flipping a switch on the TARDIS control panel which traps Magog in a dimensional prison within the TARDIS. The rest of the Malevilus try to escape this Rome in the ship that had masqueraded as the Imperial palace, but it explodes on take off because Magog had previously drained it of most of its power.

Having helped out the Earth of this reality, the Doctor decides to return to his own dimension. He's off to take a much-needed holiday to Benidom.

Notes:
This is an unusual example of an American title having been grafted onto a British story. Instead of just calling this "The Iron Legion, Part 2", Marvel decided to give it a unique name.

Clone the creators / characters of this story to another story