The Sky drama series is a must-watch for adrenaline junkies.

One of the leading stars of Sky's eagerly anticipated action thriller Prisoner has spoken candidly about the demands of working on the six-part series, reports the Mirror.

French actor Tahar Rahim revealed how he and co-star Izuka Hoyle spent four months handcuffed together throughout the filming process.

Reflecting on the difficulties of shooting while physically attached to his co-star, The Serpent actor explained: "Being handcuffed to someone for four months filming could easily be a nightmare, but Izuka is a beautiful soul.

"We got on incredibly well and became real friends. She's my partner in crime. It was a pleasure."

The duo portray high-value prisoner and mafia informant Tibor Stone (Rahim) and prison transport officer Amber Todd (Hoyle) respectively.

When their prison convoy comes under attack from the very organised crime group that Stone is set to testify against, Todd makes the snap decision to handcuff herself to him, determined to ensure he reaches court for the trial within four days.

Yet Tibor is far from an ordinary informant - he is a trained assassin, capable of neutralising many of those dispatched to silence him before he can take the stand.

This demanded that both Rahim and Hoyle carry out stunt sequences together while their characters remained handcuffed to one another.

Addressing these demanding sequences, the Golden Globe and BAFTA nominee explained: "Being handcuffed during big stunt sequences made things more complex.

"Our stunt team was brilliant and inventive, open to ideas and incredibly collaborative.

"Izuka and I had to constantly adapt and choreograph every movement together.

"Izuka has great instincts and she's strong, which made everything easier. I decided to just flow with her and to treat it like a dance.

"For me, acting with a partner is a kind of dance: you listen, you feel, you respond."

Meanwhile, Big Boys and Scottish BAFTA winner Hoyle explained: "Having them on made us realise just how close we were going to be to each other for such a long period of time, and that took some getting used to.

"Tahar is incredible. He's physically fit, so in terms of us pushing each other, it was great.

"Our competitive streaks would come out... 'We can go faster than that. We can do better than that. We can push harder than that.' And we did. Everyone around us would be like, 'F****g hell'."

Prisoner will be released on Sky as a boxset on Thursday, April 30