The Byrdes' 14-year-old son Jonah starts laundering in new Ozark trailer: 'Your greatest threat will

There's a new member of the Byrde family getting into the money-laundering business - teenager Jonah (Skylar Gaertner) - in the latest trailer for the fourth and final season of Netflix's Ozark.
Season four will be divided into two parts with the first seven episodes streaming January 21, and the final seven episodes do not yet have an air date.
Upon hearing this development, Jonah's criminal father Marty (Jason Bateman) remarks: 'Jesus, laundering at 14.'
Marty's wife and partner in crime