Cult TV series The Prisoner could make a return after almost 40 years.

Sky One is said to be planning a new series inspired by the original which had Patrick McGoohan as a former secret agent trapped in an isolated town.

The show will not take place in the famous setting of the original - the north Wales village of Portmeirion - industry weekly Broadcast said.

But it is understood the themes of paranoia, conspiracy and identity crisis would remain.

Damien Timmer, who has been lined up to executive produce the show for Granada, told Broadcast the new series would take "liberties with the original" and would not retain its arty feel.

"Although it will be a radical reinvention, it will still be a heightened show," he added.

The original Prisoner ran for 17 episodes on ITV from 1967.

Bill Gallagher, the writer of the BBC's crime drama Conviction, is reported to be writing the new version.