'Chicago Fire' season 5 episode 7 spoilers: Dawson family reunion takes turn for the worse

A Dawson family reunion will be in order come the next episode of "Chicago Fire" season 5, "Lift Each Other." However, it will not be all hugs and kisses.

For this occasion, Jon Seda will play his role as Antonio after leaving "Chicago P.D." He and Gabby's (Monica Raymund) parents will be in town for a big anniversary party.

The synopsis for the "Chicago Fire" season 5 episode 7 teases that things will "turn south." What will cause for this reunion to get ruined remains to be seen.

The promo for the installment teases that a "family secret" will be exposed that will leave Antonio fuming and his sister weeping. "Talk about being blindsided," she said in the trailer as she wiped away her tears.

Antonio, on the other hand, could not contain his emotions and goes charging into an unseen individual as his friends tried to stop him.

Who Antonio is looking to beat up remains a mystery at the moment, but it appears that "Chicago Fire" season 5 episode 7 will be a game-changer for both Gabby and Antonio.

Some speculate that Gabby was revealed to be adopted although choosing a room full of people during an anniversary party to make that known will be a bit too much.

Seda will actually be back in "Chicago Fire" season 5 episode 8 as the show continues this storyline. Interestingly, in this episode, Gabby along with Casey (Jesse Spencer) will be taking a major step in adopting Louie.

What Antonio will be up to in this episode is not yet to be revealed, but it is likely for him and his sister to deal with the bombshell they learn in the previous episode.

Continuing the theme of secrets and family, "Chicago Fire" season 5 episode 7 will also see Boden (Eamonn Walker) will "go on a rampage" after learning someone hit his stepson.

"Chicago Fire" season 5 episode 7, "Lift Each Other," airs Tuesday, Nov. 29 at 10 p.m. EDT on NBC.