A TV series filmed in Glasgow is set to air in 146 countries.

Nightsleeper is about the hacking of a sleeper train travelling from Glasgow to London and a government agency’s frantic efforts to intervene.

The series will be aired in countries including Australia, New Zealand, France, Greece, Cyprus, Denmark, Spain, and Japan.

It has already been aired in the UK and has been a hit with a number of positive reviews.

The series is produced by Fremantle's Euston Films for BBC One and BBC iPlayer.

It is directed by Jamie Magnus Stone and John Hayes, with Fremantle handling global sales.

(Image: Nightsleeper)

Jens Richter, chief executive officer, commercial and international at Fremantle, said: "We’re thrilled to be partnering with such an exciting mix of esteemed global broadcasters to continue introducing Nightsleeper to audiences around the world.

"The series delivers pulse-pounding action, unpredictable twists, whilst featuring the exceptional talents of Joe Cole, Alexandra Roach, and an outstanding ensemble cast.

"It has become a firm favourite amongst critics and audiences not only in the UK, but oversees too, and we’re confident it will continue to resonate with fans across every market.’’

Kate Harwood, executive producer, said: "Nick Leather and I are thrilled to hear that our train has arrived successfully into so many global territories.

"Nightsleeper was a demanding production, but its success has been immensely satisfying and fun to experience."

The series has received praise from UK media, with the Daily Express calling it a "twisted, high-octane hit" and The Guardian saying it "takes the nerve-jangling suspense of 24 and Bodyguard and speeds them up."

The show stars Alexandra Roach and Joe Cole.

It was written by BAFTA award-winning writer Nick Leather, alongside Laura Grace, and executive produced by Leather, Harwood, Stone, and Gaynor Holmes for the BBC.