Amazon released the first teaser to the "Jack Ryan” spy series with John Krasinski ("The Office") playing the titular role. It's a 40-second short clip depicting what seemed like the money trail of a terrorist organization.

According to Screen Rant, a longer trailer for “Jack Ryan” will be showcased at the New York Comic Con on Oct. 7. Amazon will also have a panel at the said event with John Krasinski, Abbie Cornish, Wendell Pierce and executive producer Carlton Cuse.

What's the series about?

Cuse, whose TV credits include “Lost” and “Bates Motel,” developed “Jack Ryan” for the Amazon streaming platform with “Fringe” executive producer Graham Roland.

The series will center on the titular character as a CIA analyst who discovers suspicious transactions in some bank transfers that have been linked to terrorist operations.

The show itself won't follow a specific book from Tom Clancy's work. Cuse and Roland were keen to adapt the show following a relevant timeline with ISIS as the main antagonist.

"Jack Ryan" will play out like a 10-hour movie divided into 10 episodes, according to John Krasinski. The actor loves the idea that viewers will get to spend more time with the character, as opposed to watching his story unfold as a feature film.

"[With] long-form television, you can take a literary character that is so beloved and actually spend as much time as you would with a book, instead of jamming it into a two-hour movie,” John Krasinski told Entertainment Weekly.

Who else played him?

Best-selling author Tom Clancy created the fictional character Dr. John Patrick "Jack" Ryan for his spy series, which was later adapted for the big screen. Alec Baldwin, Harrison Ford, Ben Affleck and Chris Pine played different versions of Jack Ryan in films like “The Hunt for Red October” (1990), “Clear and Present Danger” (1994), “The Sum of All Fears” (2002) and “Shadow Recruit” (2014).

John Krasinski was cast as the CIA analyst for the series in April 2016. Abbie Cornish’s addition followed as the hero’s girlfriend. Producers also picked Wendel Pierce, Peter Fonda, Timothy Hutton, Mena Massoud, Ali Suliman, Amir El-Masry, Michael Gaston, Ron Canada and Al Sapienza to make up the ensemble.

Executive producer/director Daniel Sackheim told Indiewire that the small screen version will take cues from the Harrison Ford movies, which pictured Jack Ryan as a vulnerable and regular fellow who's capable of heroism.

Amazon plans to release “Jack Ryan” in March 2018.