Fresh off a surprising 10-6 playoff berth in 2012, head coach Leslie Frazier's 2013 Minnesota Vikings entered the year hoping to establish sustained success in a deep NFC North. General manager Rick Spielman bolstered the roster with notable free agents Greg Jennings, Matt Cassel, and Desmond Bishop while drafting Xavier Rhodes and Cordarrelle Patterson in the first round. However, the campaign quickly unraveled due to catastrophic defensive regression and persistent quarterback instability. Minnesota stumbled to a dismal 5-10-1 record, placing 4th in the division and missing the postseason. The disappointing campaign marked the franchise's final season at the H.H.H. Metrodome and ultimately cost Frazier his job at the conclusion of the year.

The offensive unit maintained respectable statistical production, ranking 14th in scoring with 391 points (24.4 ppg) and 13th in total yards with 5,508. However, the passing game suffered from a frantic quarterback carousel. Matt Cassel made six starts, throwing for 1,807 yards, 11 touchdowns, and nine interceptions, while Christian Ponder logged nine starts, recording 1,648 passing yards, seven touchdowns, and nine interceptions. Josh Freeman also made one disastrous start. Star running back Adrian Peterson anchored the offense, rushing for 1,266 yards and 10 touchdowns on 279 carries across 14 games to earn Second-Team All-Pro honors. Free agent wideout Greg Jennings led the receiving corps with 68 receptions for 804 yards, while versatile rookie Cordarrelle Patterson contributed 469 receiving yards, 158 rushing yards, and seven total offensive touchdowns.

Defensively, Minnesota endured a nightmare season, ranking dead last in the NFL by surrendering 480 points (30.0 ppg) and 31st in total yards allowed at 6,362. Opposing offenses shredded the secondary for 37 passing touchdowns while Minnesota's defense managed only 12 interceptions. Veteran edge rusher Jared Allen remained a focal point of the defense, pacing the team with 11.5 sacks and 26 quarterback hits, while defensive end Brian Robison contributed 9.0 sacks. Linebacker Chad Greenway spearheaded the front seven with a team-high 134 tackles, supported by middle linebacker Erin Henderson's 113 tackles and 4.0 sacks. Rookie cornerback Xavier Rhodes showcased promise with 10 pass breakups, but the unit repeatedly failed to hold second-half leads throughout the autumn.

The season was defined by close losses, bizarre finishes, and complete road futility, as the Vikings failed to win a single game away from home going 0-7-1. Minnesota opened 1-7, with their lone early 34-27 win coming against Pittsburgh in London during Week 4. Late-season highlights included a frantic 26-26 overtime tie against Green Bay in Week 12, a dramatic 23-20 overtime win over Chicago in Week 13 and an offensive explosion in a 48-30 victory over Philadelphia in Week 15. Rookie special teams star Cordarrelle Patterson earned First-Team All-Pro honors after leading the league with 1,393 kickoff return yards and two touchdowns. The Vikings closed the Metrodome era with a 14-13 Week 17 win over Detroit, closing a tumultuous chapter before transitioning to a full organizational reset.