Rebecca returns home from her internship in Los Angeles in the Season 5 premiere. Meanwhile, Si gets sick and asks Miss Kay to take care of him.
Si takes the kids to find some treasure as Willie has to hire a new assistant to help him out.
Si records a day in his life on a GoPro after getting inspired watching footage that Jep had shot on his.
Phil frightens Mia and Priscilla when he tells them a frightening ghost story. The crew pull an all nighter to complete a huge order.
Phil and Jep find a connection in a odd place as Willie and Jase go head to head in a cooking competition.
A paintball match is the only way Willie and Jase can see to resolve their latest argument.
Jase spends company funds on an all-terrain vehicle as a means of motivating the workers; Kay becomes a text-messaging menace after Willie buys her a new cell phone.
Jase offers for him and the team to help Jep build a playhouse for the kids. Phil and Si wind Willie up. Jep worries that the playhouse resembles a duck blind.
Jase' latest invention gets tested out by everyone else. Phil and Jep take Priscilla and Merritt to visit a horse farm.
The Robertsons plan a family reunion to give Mia a grand send-off before her surgery.