The media watchdog has said it is investigating illusionist Derren Brown's latest TV show after viewers complained about a scene portraying a man restrained by a straitjacket on a railway track.
Ofcom received 11 complaints about the set-up where the man made a Houdini-style escape moments before an oncoming train arrived at the spot where he was tied up.
The Channel 4 programme, Derren Brown: Hero At 30,000 Feet, saw Brown help a volunteer who lacked confidence by helping him through a series of challenges.
The finale culminated in Brown tricking the "average Joe" to believe he safely landed a Boeing 737 after the captain became unconscious.
In reality the volunteer was placed under hypnosis by the illusionist and moved to a flight simulator where he believed he successfully landed the aircraft.
The media regulator is investigating the show, broadcast on September 8 at 10pm, to see if it breached broadcasting regulations.
It will decide whether the railway scene provided "adequate protection for members of the public from the inclusion in such services of harmful or offensive material" or whether the programme included material "which condones or glamorises violent, dangerous or seriously antisocial behaviour and is likely to encourage others to copy such behaviour".