Here's what to know about 'The Accountant 2' ending and what the cast and director have said about a third film

• "The Accountant 2" director Gavin O'Connor has already begun teasing plans for a third film.
• But the second movie has no plot holes or hints that indicate what the next one could be about.
• Here's what to know about "The Accountant 2" ending, and the director's comments on a third film.

Warning: Spoilers ahead for "The Accountant 2."

"The Accountant 2" has no teasers for another sequel, but the creators and cast are keen on making a third film.

"The Accountant," a 2016 action crime drama that followed an autistic accountant for the criminal underworld who was also a highly trained vigilante, was a surprise box office hit, despite receiving largely negative critic reviews.

A sequel was not expected as the first film did not leave any cliff-hangers, and a second movie was not announced for several years.

On Friday, "The Accountant 2" was released in theaters, with most of the main cast from the first film reprising their roles. Gavin O'Connor and Bill Dubuque, the director and screenwriter of the first film, also returned.

While a third movie has not yet been announced, O'Connor told Collider in March that the franchise is meant to be a trilogy.

O'Connor said he and Dubuque began discussing "The Accountant" becoming a trilogy while editing the first movie, and they are starting to come up with ideas for the third movie's plot.

Ben Affleck told Fandango earlier this month that he would love to return for another sequel, believing the franchise has a big audience.

"This is a movie that I've noticed over the intervening years, like so often people will come up to me and the movie that they bring up is the first 'Accountant,'" Affleck said. "I was like, wow, people really have an affinity for this."

Christian and Braxton are on a road trip together at the end of "The Accountant 2."

In the sequel, Ray King (J.K. Simmons), the retired head of the US Financial Crime Enforcement Network, is killed while trying to search for a missing woman and her son.

The new boss, Marybeth Medina (Cynthia Addai-Robinson), can't solve the mystery, so she calls Christian Wolff (Affleck), the accountant/vigilante, who has been secretly working with Medina and King to track criminals.

Medina doesn't like Wolff's violent methods, causing friction between the pair, and she eventually cuts ties after he ropes in his brother Braxton (Jon Bernthal), a professional hitman.

The brothers also have a strained relationship after Christian disappeared for many years, and he struggles to show Braxton the emotional support he craves.

The pair eventually find the missing woman (Daniella Pineda), who is now an assassin with amnesia, with her kid located in a prison camp for children of immigrants used to blackmail their parents into human trafficking.

At the end of the movie, Christian and Braxton go to Mexico to save the children at the camp and kill the bad guys. The female assassin learns her identity, and kills the man behind the human trafficking.

The final scene shows Christian and Braxton driving the missing child to Harbor Neuroscience, a treatment center for children with autism, which Christian attended as a child.

Christian believes the child is also autistic, so he would benefit from living with people like him.

Gavin O'Connor said the third film could be a road trip movie

While the first movie was a gritty crime drama, the second felt like a buddy cop movie.

O'Connor told Indiewire this week that he wants the third film to be a road trip movie with Christian, Braxton, and Dana Cummings (played by Anna Kendrick in the first film).

"For the third one, I was telling Ben this morning, 'I'm going to put you two, and maybe Anna Kendrick, in a pickup truck together and do a road picture and no plot at all," he said.

Cummings, who did not feature in the sequel, was an accountant for a tech company whom Wolff befriends and protects after she discovers that her employers are embezzling millions of dollars.

O'Connor said Kendrick was keen to return for the third film.

"We need Christian to find love finally, you know?" he said. "And I think I can mine a lot because Anna is so funny — I think we can have a lot of fun with the three of them."