"Guardians of the Galaxy Vol. 2" will release its third official trailer on February 28. However, before that, a teaser trailer has been released. 

As per Express, the new teaser of "Guardians of the Galaxy Vol. 2" featured a new alien. This new character is none other than Nebula and she appeared to have joined the team. Whether she is an ally or something else, it's not cleared yet.

The short video of "Guardians of the Galaxy Vol. 2" featured the gang, campfire and deep woods. Keeping up with the humor of Marvel Cinematic Universe, Drax the Destroyer simply cannot eat without making uncomfortable chewing noises. The team doesn't look very happy about it.

The clip also featured alien warrior Nebula joining hands with the Guardians. For those who cannot remember who she is, Nebula is the sister of Gamora. Last time fans saw her fleeting for life after trying to kill her sister. It seems like Nebula has finally decided to join the light.

Fans were speculating Nebula's return for quite some time. However, "Guardians of the Galaxy Vol. 2" teaser shocked everyone when Nebula returned as a possible ally and not enemy.

As per MovieWeb, the official synopsis of the superhero flick stated that Marvel's "Guardians of the Galaxy Vol. 2" will continue the adventure ride. The team will travel to places in the universe they have never traveled before. 

An interesting point of the synopsis is Chris Pratt's character Peter Quill's true parentage. Apparently, the team will unravel the mysteries of Peter Quill's father in "Guardians of the Galaxy Vol. 2". 

The synopsis also hinted that more characters from the classic comics will arrive to help the Guardians and MCU will continue to expand. Reportedly, "Guardians of the Galaxy Vol. 2" will also deal with the issue of Thanos. The movie is set to hit theaters on May 5, 2017.