The wait is finally over for SJA fans, as today is the beginning of the long awaited fourth series! The series opener, The Nightmare Man, airs today on CBBC, with part 2 on tomorrow, and then repeated on Wednesday and Thursday on BBC One for those without CBBC.

Not only can you watch part 1 today, but you can also catch the gang on Blue Peter, and watch the behind the scenes show, titled “Sarah Jane’s Alien Files” straight after The Nightmare Man part 1, on CBBC. Schedule is below.

Blue Peter with SJA cast – 4.30pm – BBC Two
The Nightmare Man Part One – 5.15pm – CBBC
Sarah Jane’s Alien Files – 5.45pm - CBBC