“Trainwreck Poop Cruise,” streaming Tuesday as a Netflix original, chronicles the hideously unsettling events that beset 4,200-plus passengers on a four-day Gulf of Mexico cruise aboard the Carnival Triumph.

An engine fire wiped out electricity, air conditioning, internet service and… the toilets.

Days passed with the ship going nowhere. Word only got out once another ship neared and internet service was temporarily restored. The pleasure cruise that wasn’t immediately became news.

As “Poop” director James Ross explains in a Zoom interview, “This was one of those stories people may remember from 10 years ago but the story of what really happened had not definitively been told.

“We wanted to tell the story of the passengers and the crew but also the story of the wider impact of what happened in terms of the media and CNN.”

He began with key passengers, “People who could testify to what was actually happening onboard that boat. How it all went down.”

They canvassed people who posted videos on YouTube.

“We were looking for people who had something more than just a vacation invested in this.

“Devin who was getting married was there to meet his father-in-law. It was Ashley’s bachelorette party, a trip to make memories before the wedding.

“Larry had recently been divorced and wasn’t able to spend as much time with his daughter Rebecca, who at the time was 12. It was to be this vacation where they could reconnect.”

A most memorable moment?

“When Jen the cruise director announces to all the passengers and crew that what you need to do now is do a Number 1 in the shower and a Number 2 in a red bag.

“That is one of those sentences no one ever expect to hear on a vacation (and probably will never hear again). The fact that it had been recorded and we had the real audio, it was just like, ‘What is going on here!’ ”

Then there was the big picture — with CNN going wall to wall with coverage, including helicopters.

“It was,” Ross marveled, “the biggest story in America for those few days.

“With the title ‘Poop Cruise.’ You think this is a simplistic story, but really it’s not. It’s a fascinating story that’s easily overlooked as something silly.

“Actually, it was a fascinating insight into human nature and adversity and how people respond to extreme circumstances. It was an insight into the media.

“When CNN decided to latch onto this as a big story, that was controversial. It’s always a bold decision to say, ‘We’ve got Obama having the State of the Union address. The Pope has just died. But you know what? We’re gonna go wall to wall on this cruise ship story.’”

“Trainwreck: Poop Cruise” streams on Netflix June 24