Missouri's most unlikely but lethal money launderers are fully operational once again, with Netflix dropping the first-ever trailer for the final season of Ozark ahead of its January 21 premiere. It appears that things are just as bloody as ever for the Byrdes. Not to mention, the husband and wife duo now have managed to rope in their 14-year-old boy, Jonah, into the family business.

The first full trailer for Ozark Season 4 is full of tension

The First Ozark Season 4 Trailer Teases An Explosive Finale

Technically, this isn't the first trailer for Ozark Season 4. Back in September of last year, Netflix teased audiences with a small glimpse of what to expect from Ozark's upcoming season. Less than a month later, the streaming giant confirmed when the first half of the fourth season of Ozark will be released. Now, with a new trailer, fans just got a better look at what cleaning up money for the Mexican drug cartel has taken the Byrdes.