After a lengthy absence, Luke's truck-driver father George (Gary Grubbs) rolls back into his son's life, begging the boy to join him on his next road trip. When Luke (Leonardo DiCaprio) refuses, George claims to be suffering from a bad back. Mike (Kirk Cameron) thinks George is faking, but in fact his back problems are so severe that he is danger of becoming completely paralyzed--and before long, Jason (Alan Thicke) and Ben (Jeremy Miler) have agreed to drive George's latest load to its destination. Tracey Gold (Carol) does not appear in this episode, which marks the final series appearance of Leonardo DiCaprio (wonder whatever happened to him?) ~ Hal Erickson, Rovi