Ant McPartlin and Dec Donnelly caused havoc and left Bradley Walsh mortified during an explosive prank on Saturday Night Takeaway.
The host of The Chase game show was shouting at contestants and in shock as the sneaky pair tricked him into thinking the contestants were playing for £200,000.
In the teaser clip, Ant and Dec are seen hiding in the studio with the 'confidential' answers to the questions.
Ant says: "Prepare for the best cash builder round ever."
The pair then feed the answers to each contestant, with the four players getting through to the final chase with a record amount.
Bradley is seen asking "is this a wind-up?" as he watches on in disbelief.
The presenter also gets frustrated when one player says she knows the answers but takes her time in pressing the button.
Meanwhile, Ant and Dec are in hysterics as Bradley slumps over the desk and shouts: "Oh my god!"
The short teaser then shows Ant and Dec dressed as firefighters, before they push a big red button.
A light then flashed in front of Bradley's shocked face - but viewers were left waiting in anticipation to see the chaos the pair caused.
After the preview, Ant said: "Can’t wait to show you that.""
Viewers of Saturday Night Takeaway were left confused and angry after the teaser failed to air.
One said: "Gutted the Bradley Walsh prank wasn't on this week. It was our main reason to watch tonight. Come on guys, will it be on next week?"
Another wrote: "When on earth are @antanddec going to show the @BradleyWalsh thing? By the time they do it we’ll have seen it all in the clips. We already know the premise. Just show the ******* thing."
A third said: "Did I miss something, what happened to Bradley Walsh? You advertised it."
"When is the Bradley Walsh undercover thing on? It was mentioned last week and not on then a newspaper said it was this week but no mention..? What’s going on..??" asked another confused fan.
"I thought you had said Bradley Walsh was on this week" tweeted another.
Ant and Dec's Saturday Night Takeaway airs Saturdays on ITV at 7pm
