Arthur walked in to the room. He was shirtless for no apparent reason. (Arthur shirtless)
"You know how I feel about you, don't you?" asked Arthur. (flirting with Gwen)
"I'm sorry, were you talking to me or Gwen?" asked Merlin. (Merthur banter)
"Shut up and search the town for my shirt," said Arthur. (search the town)
"As you wish," said Merlin and Gwen simultaneously. (Princess Bride reference)
Gaius found Uther in his chambers eating some suspiciously modern-looking cold cuts. (Uther eating)
"I fear this is the work of magic, sire," said Gaius.
"I throw you in the dungeon for saying such a thing!" (thrown in the dungeon)
A peasant is kneeling before the king in the throne room. "Because of the shirt-eating monster, a terrible sniffle is killing the poor townsfolk!" (mortal peril)
Arthur, Gwen and Merlin glance at each other meaningfully. (exchanging meaningful looks in the throne room)
Morgana smirks at the camera. (self explanatory)
Arthur gets knocked out while fighting the shirt-eating monster. Merlin magics it to death, and Arthur get's the credit when he awakes. (Merlin saves everyone, Arthur gets the credit)