'Line of Duty' made its return to our tellys last night and fans were only delighted.
Now in its sixth installment, 'Line of Duty' stars Martin Compston, Vicky McClure and Adrian Dunbar.
Shalom Brune-Franklin plays a new addition to the AC-12 team. Additionally, Kelly Macdonald makes her debut as guest lead for the series, Detective Chief Inspector Joanne Davidson.
In the new episode, new information comes to light about a possible suspect in a year-long unsolved murder.
DCI Joanne Davidson is keen to finally bring Gail Vella's killer to justice, but her conduct arouses suspicion.
It's not long before AC-12 are on the case.
The sixth season of 'Line of Duty' will comprise of seven episodes, which is one episode more than the norm. It's also the longest series to date.
The season wrapped filming last November following a number of months' delay during 2020 due to, well, you know at this stage.
Fans of the Jed Mercurio crime thriller can try out our 'Who Said It?' quiz.
Check out the Twitter reactions to episode one of the new season of 'Line of Duty' below.
'Line of Duty' continues this Sunday on BBC One at 9pm.
You can watch the first five seasons of the series on Netflix now.