Courtland Sutton smiled. P.J. Locke gasped. Marvin Mims Jr. was given space on a crucial punt return in the fourth quarter against the Colts and all his teammates on the sideline knew something special was about to happen. The second-year wide receiver — one of the best punt returners in the league — caught the ball on the far right side of Denver’s 25-yard line before sprinting to the left and down the sideline for a 61-yard return to Indianapolis’ 15. Two plays later, quarterback Bo Nix threw a short pass over the middle to Nate Adkins that the second-year tight end turned into a 15-yard touchdown with a spin move and shake to give the Broncos a 17-13 lead with 13:51 to go. It was the first blow landed in a 21-point fourth quarter Sunday at Empower Field at Mile Mile that gave the Broncos a 31-13 knockout victory and secured the team’s first winning season since 2016.