AN acclaimed BBC drama is returning to screens this month after a string of rave reviews.
However, it's not too late for you to catch up if you haven't had a chance to watch the first series, as it's available on BBC iPlayer.
Blue Lights follows three rookie police officers working with the PSNI in Belfast, Northern Ireland.
The first series aired this time last year, and its second outing is set to return to BBC One on Monday, April 15 at 9pm.
It's a show worth investing in if you haven't already, as not only did the first series receive rave reviews, but it was revealed last month that the drama had already been recommissioned for a third and fourth series before season two even aired.
Each series will consist of six episodes and is helmed by Declan Lawn and Adam Patterson.
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When the news of series three and four being commissioned was revealed last month, the pair said: "We’re thrilled that the BBC is committing to Blue Lights in this way.
"From the beginning, we wanted to write a show that had scale and ambition in its storytelling, and this decision gives us everything we need to do that.
"Thanks to the BBC, to Two Cities/STV and Gallagher Films, and to our brilliant cast and crew.
"But most of all thanks to our audience who have responded so powerfully to the show. Time for us to get to work!"
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Co-creators and executive producers Stephen Wright and Louise Gallagher added: "A two-series recommission is a staggering vote of confidence in Blue Lights – the writers, the cast, the crew and the entire production team.
"The BBC have been exceptional partners who have helped us elevate the show.
"A big thank you from everyone in the Blue Lights team for the faith and support given to our show; we are working with the best people.
"There are so many more stories to tell and we can’t wait to get going again with the Blue Lights squad in Belfast.”
The announcement was part of BBC Director of Drama Lindsay Salt's decision to commission 12 new dramas as part of an "urgent" TV shake-up.
Meanwhile, it was also revealed last month that Casualty legend Derek Thompson has joined Blue Lights for series two.
From the beginning, we wanted to write a show that had scale and ambition in its storytelling, and this decision gives us everything we need to do that
Declan Lawn and Adam Patterson
The 75-year-old actor left his role as Charlie Fairhead in the long-running medical drama last month after an incredible 37 years.
Blue Lights marks a huge change for Derek, who has only made limited appearances in programmes outside of Casualty over the last 37 years.
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He will play the character of retired police officer Robin Graham in five episodes of the second series of the programme.
Blue Lights series two begins on Monday, April 15 at 9pm on BBC One.