Trailer Park: Chris Pine as 'Jack Ryan'

Chris Pine is doing his part to keep the Tom Clancy legacy alive.

The "Star Trek" actor is the latest to step into the role of Clancy's character, Jack Ryan, for December's "Jack Ryan: Shadow Recruit."

But this installment, directed by Kenneth Branagh, isn't based on a Clancy novel - instead, it's an original story that features versions of the prolific author's famous characters.

In "Shadow Recruit," Jack Ryan goes from being an anonymous CIA analyst to operational when he uncovers what he thinks is a Russian plot to send the U.S. economy into a tailspin.

As the new trailer shows, "Shadow Recruit" will send Jack Ryan - and his fiancée, Cathy (Keira Knightley) - over to Moscow under the guidance of handler William Harper (Kevin Costner, who easily delivers the best lines of the clip.)

Here's the official synopsis from Paramount:

"The story follows him from 9/11, through his tour of duty in Afghanistan, which scarred him forever, and into his early days in the Financial Intelligence Unit of the modern CIA where he becomes an analyst, under the guardianship of his handler, Harper (Kevin Costner). When Ryan believes he's uncovered a Russian plot to collapse the United States economy, he goes from being an analyst to becoming a spy and must fight to save his own life and those of countless others, while also trying to protect the thing that's more important to him than anything, his relationship with his fiancée Cathy (Keira Knightley)."

"Jack Ryan: Shadow Recruit" opens December 25. What do you think of the trailer?