Michal: (translating for the security guard) He wants to know if you're carrying a gun.
Mack: Why would I be carrying a gun? They make me look fat.
Jonas: The professor suggests that the secret to the problem of incursion in depth can be found in the construction of the ancient battlement.
Bob: (laughs) The ancients didn't have gunpowder.
Jonas: Well, then that's our first hint now, isn't it. What do we do to render gunpowder ineffective?
Bob: Give it to a pacifist.
Bob: Okay, here we have, thank you, a castle, now the problem that he has left us with; suppose an infinite number of attackers, right?
Jonas: No one has an infinite amount of attackers.
Charles: Boss, the dude went to college, let him rant on.
Jonas: What did you learn at this college, Bob?
Bob: Well you had to be there.
In the Czech Republic, this episode named "Two Coins" is known as "Dvě mince".
International Air Dates:
Slovakia: September 4, 2009 on JOJ
Although credited, Robert Patrick (Colonel Tom Ryan) does not appear in this episode.