S5·E4 The Time of Angels (1)

A crashed spaceship, a shattered temple and a terrifying climb through the maze of the dead - River Song is back in the Doctor's life, and she's brought more trouble than even he can handle. The last of the weeping Angels is loose in the ruins of Alfava Metraxis, and the Doctor is recruited to track it down. "Don't blink!" everyone tells Amy - but Amy is about to discover, not blinking might just be the worst thing you can do...