Marvel unveiled the brand new trailer of "Captain America: Civil War" at the first-ever Asia ComicCon, which was held on Sunday in the Philippines. And it looks like fans have just got lucky with some new plot details that have come through a leaked description.

Apparently, reddit user murdockmanila, who claims to be one of the audience members at the event, has revealed some details from the new trailer. The user highlighted that this trailer is actually the same D23 leaked trailer that everyone has been talking about it for the past few weeks.

The user also revealed some major plot details and information about what the film may witness. He said the trailer opens in the African market where Falcon (Anthony Mackie), Black Widow (Scarlet Johansson) and Captain America (Chris Evans) are tracking a van filled with explosives. Another major revelation is about a major showdown between Captain America and Crossbones. The description also talks about the war of words between Tony Stark and Steve Rogers.

Excerpts from the user's trailer description are as follows:

"So as you all know, a big major convention was held in my country for what I think is the first time. One of the biggest draws of this event was the scheduling of an exclusive sneak peek at Civil War along with a Paul Bettany appearance. Went to the venue as early as I could, got in line and waited diligently for about 2 hours. They surprisingly made an effort to prevent bootlegging; they confiscated our phones etc which I still felt wasn't enough. Someone could have probably slipped a GoPro or a smaller device undetected.

"We wait for around half an hour or so then Paul Bettany goes in the room and the crowd goes wild. No fanfare, no big "PLEASE WELCOME PAUL BETTANY!!" intro. The man just walks in out of nowhere with a bunch of bodyguards and everyone loses their minds. He makes his way through the room and sits a few feet away from where I was sitting. The presentation begins as a Disney rep goes in and does a short intro about the movie. Then the trailer happens!!!

"DISCLAIMER: It was without a doubt the D23 trailer that everyone here pretty much talked about several weeks back. It even had a watermark.

"Most of your probably know what that trailer looked like but here are my takeaways from viewing it twice. Yes we got to see it twice.

"Redwing seriously looks amazing!! The trailer does open with Cap's team in the African Market. Falcon mans a stealthy Redwing making its way under a van filled with explosives. Cap orders the team to attack. Falcon does an super awesome dive from the rooftop he's in and doesn't pull out his wings until landing closely.

"You know those on set pics of Cap and the crowd screaming at something above them in fear? It's Cap throwing a grenade in the air. Someone fires a grenade at him (I think it's Crossbones) and it latches on to his shield. Cap tosses it in the air before it explodes. As Cap flinches at the air explosion, Crossbones kicks him hard from behind and their fight happens. I didn't notice anything different from the D23 descriptions in this one. Cap dismantles one of Crossbones' gauntlets pretty quickly. Crossbones then pops a blade out of the other gauntlet. Again, Cap beats him up and cracks his helmet. We don't get a good look at Rumlow's burnt face here..."

"...Those Tony Stark lines to Steve about how he wanted to punch him in his perfect teeth? I was expecting it to be during a fight. Those scenes were set in a conference room, probably from the same venue where those control rooms are. We see a helmetless Iron Man open an elevator door with his hands and he has a huge black eye. Another with Tony Stark walking behind General Ross..."

"...That's pretty much all I have in mind now. I might remember some scenes later. There's probably more detailed info out there but will definitely update this thread if more come to mind. There was a Q&A after the panel which I was not able to attend thanks to a mixup in the schedule. Feel free to ask questions!..."

CLICK HERE to read the complete trailer description.

Now whether events described in this description are genuine or not, we will know only when "Captain America: Civil War" hits screens on 6, May, 2016, in the US and on 29, April, 2016, in the UK.