The Johnstons are back with some big life events on the horizon. Trent seeks answers for his ongoing health issues, Liz re-enters the dating scene with Emma not too far behind and Anna is unsure about leaving home after graduation.

The Johnstons pursue their family history with the help of a genealogist and get some unexpected results. Jonah deals with the fallout from being kicked out of college, while Trent and Amber turn to a professional for help.