Bigger On The Inside

The Cybermen, a woman from 1638, and a Nazi want to get their hands on an all-powerful weapon The Doctor seemingly created ages ago ("Silver Nemesis"). Then The Doctor and Ace visit a deadly circus where they become the acts ("The Greatest Show in the Galaxy"). Also, Mike doesn't understand the titles of British sitcoms, the perils of white men in their 30s writing rap, and Dan's greatest secret is revealed!