The 2012–13 season saw a more stable squad than had been seen by Grimsby Town in recent years, with a total of 12 players from the previous season's squad remaining. The previous season's top scorer Liam Hearn suffered an Achilles tendon injury in pre-season, and although he appeared to be on the road to recovery when he came on as a substitute against Stockport County, just three days later he injured his leg in training, and tests showed it was an Achilles tendon rupture and he would be out for several months. However, despite the loss of such an important player, and despite not winning 5 games into the season, Grimsby were top of the table by Christmas, with two crucial loan players Ross Hannah and Scott Neilson breathing new life into the Grimsby team. The turn of the year, however, appeared to be a turning point for Grimsby, with Nathan Pond returning from loan to Fleetwood Town and Scott Neilson signing for league rivals Luton Town. The team appeared to lack the quality they had shown towards the end of the previous year, and despite not losing until mid-February, a run of 4 consecutive losses in March saw them give up the top spot and ultimately fall away from the title race. Despite this, they reached the FA Trophy final, where they played Wrexham at Wembley Stadium on 24 March 2013. Grimsby went ahead in the second half with 20 minutes left to go, through an Andy Cook strike. However, they conceded a penalty with 9 minutes left and Wrexham equalised. This took the game to extra time, and then penalties, where Grimsby lost the shoot-out 4–1. Grimsby finished the season in good form, with a 9 match unbeaten run, finishing the season with a 3–0 win against Newport County. This led them to finish in 4th place with 83 points. They faced Newport County again straight away in the play-off semi-finals, where they were knocked out by a 1–0 loss in both legs. The managerial duo was broken up on 6 September 2013 due to Rob Scott being suspended and Paul Hurst was placed in sole charge of the team.