McGee was one of the few bright spots on the 1958 team, which finished the season with a league-low 1–10–1 record, the worst in Packers history.

Despite reductions in playing time due to injuries and age, McGee's final two seasons were the ones for which his career is best remembered.

McGee did not expect to play in the game, and he violated his team's curfew policy and spent the night before the Super Bowl out on the town (with his teammate and best friend Paul Hornung).

A few plays later, McGee made a one-handed reception of a pass from Bart Starr, took off past Chiefs defender Fred Williamson, and ran 37 yards to score the first touchdown in Super Bowl history.

This was a repeat of his performance in the NFL championship game two weeks earlier, when he had also caught a touchdown pass after relieving an injured Dowler.

[10] The following year, he recorded a 35-yard reception in the third quarter of Super Bowl II that set up a touchdown in the Packers' 33–14 win over the Oakland Raiders.

After retiring from football, McGee became a major partner in developing the popular Chi-Chi's chain of Mexican restaurants with restaurateur Marno McDermott.

[13] In 2007, at the age of 75, McGee died after a fall off the roof of his home in Minnetonka Beach, Minnesota, a suburb west of Minneapolis.