"Dalek" is the sixth episode of the relaunched Doctor Who, which aired in April 2005.
The Doctor follows a beacon to the underground bunker of billionaire Henry van Statten in Utah in the year 2012. Van Statten collects alien artifacts, including a Cyberman head. But there is one living creature among the collection: a Dalek. Having fallen through time during the Last Time War, it is heavily damaged and insane.
When Rose touches the Dalek, it gains the genetic information and time-energy it needs to escape, wiping out Van Statten's guards and pursuing Rose as the Doctor races against time to stop it from getting to the surface.
This is the first appearance of the Daleks in the rebooted Doctor Who, and marks the first appearance of companion Bruno Langley (the handsome Adam Mitchell).