A James Berrett strike that was followed by a brace from Omar Bogle was the difference as Town handed Argyle their first defeat since August, and speaking after the game, Bignot said: ''Obviously you know emotion wise you wanna get the first win.
''It would've been great if we could have got that first win last Saturday, it wasn't to be in front of our home fans but I'm sure the fans that came today will have been delighted with the performance that we put on today.''
Asked how it feels to have picked up his first victory against a side that had only lost two games all season prior to Saturday, he said: '''Yeah,you know if you're gonna get your frist win then why not against top of the table (laughs).
''It was all about us and just after the game, I apologised to some of them because I hadn't had a chance to talk to them. It's literally been out on the training field.
''I've said this week that the honeymoon period's over and we had a training session that I wasn't quite happy with but credit to them today, they've put in a performance.
''For me it was the mentality and the character today, I thought that was great and the desire to keep a clean sheet was there for all to see.
''We knew how Plymouth were gonna play, they're a talented group and they're at the top for a reason. They've got individual players tha can hurt you so we identified that and tried to nulify that as much as possible.
''In terms of chances they created, I think they were really limited to be honest and then I said it's about them worrying about our talent. We've got talent and it was there for all to see today.
''We can go and hurt teams but you won't have the ball unless you work hard and we that had an abundance. Then, when we had the ball we were at times a joy to watch.''
Town will now make the long trip back to Cleethorpes before going again on Tuesday night against second placed Carlisle United, and Bignot will be hoping for another positive performance from his players.
''Again, it's the turnaround now and our focus is firmly on going to straight to work after the game with the boys, being prepared and being ready for Tuesday,'' said the Town boss.
''It's another challenge, I can't wait to play under the lights on Tuesday night in front of our home fans and lets hope we can continue this momentum.
''At the end of the day, win, lose or draw, I want to be able to say we're a team where they can go away and go at least they tried and that's an art in itself.
''It's underrated, getting players to work hard, and every one of them can come off the pitch and say they've put a shift in.''