CAPTAIN: What's that? Seventeenth century. The pirates laugh. She cuts one of them as she passes before landing on a barrel. AVERY: The creature. Picking off the injured. PIRATE 1: Like a shark. There's a black spot. A ship's a ship. The TARDIS rocks. SHIP, BELOW-DECKS, NIGHT
As the DOCTOR is using the sonic on the lock, they hear the SIREN singing. Reflection. DOCTOR: Amy! AMY and RORY open the door and the DOCTOR pushes his way through, grabs the pendant from TOBY and begins breathing heavily on it to fog the surface. DOCTOR: Any reflection, any mirror, and the siren will attack. DOCTOR: Who are you, Henry Avery? TOBY touches the SIREN and disappears with a scream. Rory! Go find him! AMY: Where are we? DOCTOR: Not the same. They hear the SIREN. The DOCTOR walks past it followed by AMY and AVERY. Alien bogies. DOCTOR: She's keeping him alive. AMY reaches for RORY again and the SIREN turns red and hisses until AMY backs away. CPR. AMY looks at the DOCTOR who nods and the two of them hurry to unhook RORY from the life support.
Plan: A: the TARDIS; Q: What lands on a pirate ship? A: a 17th-century pirate ship; Q: Where does the TARDIS land after a distress signal? A: whose crew; Q: Who is terrorised by a Siren-like creature? A: a Siren -like creature; Q: What terrorizes the crew of the pirate ship? A: black spots; Q: What marks do the crew members of the pirate ship get when they are injured? A: Rory; Q: Who receives a cut on the pirate ship? A: Amy; Q: Who performs CPR on Rory? A: reflection; Q: What does the Siren use as a portal? A: the ship; Q: What do the Doctor and Amy rid of any reflective surfaces on? A: Toby; Q: Who is the son of Henry Avery? A: an invisible alien spaceship; Q: Where does the Siren teleport the Doctor, Amy, and Avery to? A: a sickbay; Q: Where are Rory and Toby kept on the spaceship? A: CPR; Q: What does Amy perform to revive Rory? Summary: Following a distress signal , the TARDIS lands on a 17th-century pirate ship captained by Henry Avery , whose crew is terrorised by a Siren -like creature who marks crew members with black spots when they are injured and then seemingly disintegrates them. Rory receives a cut, and Amy and the Doctor keep him away from the Siren. Discovering that the Siren uses reflection as a portal, they rid the ship of any reflective surfaces. When Rory and Avery's son Toby are taken by the Siren, the Doctor, Amy, and Avery prick themselves and the Siren teleports them on an invisible alien spaceship which occupies the same spot as the pirate ship. There they find a sickbay where Rory and Toby are kept; Amy and the Doctor pull Rory off life support and Amy performs CPR to revive him.