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With last week's fantastic episode behind us, and after Clara’s wobble, we arrive at Flatline - and, oh boy, is this one scary!

Straight from the start we are thrown into the thick of it (no pun intended).

The Time Lord taken out of the initial equation and Clara steps up to the plate and essentially becomes the Doctor.

Throughout the episode - written once again by Jamie Mathison and directed by Dougas Mackinnon - and along with some clever wordplay, Clara does a pretty decent job.

Jenna Coleman has also stepped up to the plate, so far in this series. And in this episode she more than proves why she is one of the finest actresses to ever become the Doctor’s companion.

Rigsy (played by Joivan Wade of Big School and Youngers fame) is great in his cameo and the special effects are out of this world.

Peter Capaldi, as always, is charming and for me the Doctor personified.

Each episode so far in Series 8 has included a stand out scene and this one is no exception. And Capaldi delivers another fantastic ‘quotable’ speech that may be hard to top.

Currently Doctor Who is in the midst of a golden era and this episode is another reason as to why, the show continues to go from strength to strength.

Doctor Who is on BBC One on Saturday at 8.25pm