Exeter City claimed the three points in the first of the 2013-14 season's six Devon derbies thanks to two late goals from Alan Gow and Scott Bennett.
Aaron Davies had given the Grecians the lead before Luke Young equalised with a free-kick, but former Pilgrim Gow and Bennett, who netted twice last week against Fleetwood, struck for the Grecians in the last ten minutes of the match to wrap up all three points.
The win represents an improvement for the Grecians as they failed to record wins against the Pilgrims, Torquay or Bristol Rovers last season.
However,in the current campaign, Exeter have now beaten two of those teams as they defeated Bristol Rovers on the opening day of the season.