"NCIS" Season 15 will offer something exciting to its fans when it returns in September. Teasers of the long running CBS series reveal that Leroy Jethro Gibbs and Timothy McGee will face dangerous situations.

Agents in danger

In a promo photo, Gibbs and McGee are being held captive by insurgents in Paraguay. The team is in the country as they are tracking down a missing SEAL. They found out that he went with a group of young people who are being trained as rebels in the forests of Paraguay.

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This mission is important to the SEAL, as he is trying to save the son of someone special to him.

It has been two months since Nick Torres (played by Wilmer Valderrama) left with the helicopter containing the abducted youngsters, but Gibbs and McGee decided to stay with the rebels, which is dangerous for them.

Will Gibbs make a sacrifice?

The teaser image shows the pair badly beaten. It is clear in the photo that Gibbs can still see a positive outcome, knowing that the NCIS team will save them while McGee is about to surrender.

Spoilers reveal that Gibbs will sacrifice himself for McGee, but he will definitely want to survive as his pregnant wife Delilah (portrayed by Margo Harshman) is waiting for him back in the United States. The situation isn't looking good with the rebels surrounding them. Although it is risky to leave, their only option is to get away before anything else happens to them. But will they manage to escape?

Returning cast and guest stars

After reading the teaser of "NCIS" Season 15, fans are undoubtedly looking forward to the show's return.

Apart from that, there is returning cast and guest stars who will bring a more interesting plot to the show.

Anthony Dinozzo Sr. (played by Robert Wagner), who worked with Sherlock in the previous season, will once again appear in the show. There are also rumors that Michael Weatherly's Tony will also join the cast after hinting that he wants to reunite with the "NCIS" cast since he left the show last year.

One of the confirmed guest stars is Gates McFadden who will appear in the upcoming episode. Also making an appearance are Cheryl Texiera of "Girl Meets World" and Trevor Donovan of "90210".

Meanwhile, Maria Bello is now a new series regular wherein she will make her first appearance in many episodes of the new season. Reports indicate that she will have a significant connection to Agent Gibbs.

"NCIS" season 15 is set to premiere on Sept. 26, 8 p.m. EDT on CBS.