In Extraordinary Machine (1), Jenna and K.C. talk to Cathy and Ed about adopting Tyson. Jenna tells Cathy and Ed that she would be honored if they raised Tyson.
In Need You Now (1), Cathy and Ed invite K.C. to Tyson's Christening, but he misses it. Cathy and Ed seem happy when K.C. come to visit, and invite him to join them on a walk with Tyson. Ed and Cathy reveal that they renamed Tyson "Doug", after Ed's father.
In Need You Now (2), K.C. randomly shows up at the Powells, who are surprised to see him, as they are on the way to visit Ed's parents. K.C. wants to be more involved with Tyson, but the Powells promise to call to set up another time for him to visit.