The defender’s rallying cry comes in the wake of last weekend’s damaging 2-0 defeat to Birmingham City at St Andrew’s, a result that has left Phil Parkinson’s side four points adrift of the Championship play-off places with just four games remaining.
Despite the setback — in what has quickly become a high-profile clash dubbed the “Hollywood derby” — Scarr is adamant the belief inside the dressing room remains intact.
"I think every game we go into now is a must-win and we have to take it with that attitude," Scarr said.
"There's no point stepping around it, we need to go and win games and we believe we can do that."
READ MORE: Crushed Wrexham Boss Admits it’s Back to the Drawing Board
The odds may be stacked against them.
Statistical projections give Wrexham just a 12.10% chance of breaking into the top six, but Scarr says that only adds to the sense of freedom within the squad as they chase what would be another historic milestone under Parkinson.
"We've got another four games to go, belief's still high and we've got a really good group," he said.
"We can just look at every game and feel like we've got nothing to lose, let's just go for it.
"Everyone's going to probably write us off now and say that we've got a little bit of bad form and stuff like that.
"But we know we're good enough. We've got some quality players, we can produce moments of brilliance, we just didn't do it today."
READ MORE: Time and Games Running Out for Wrexham . . . But Play-Off Bid is Far From Over
The defeat to Birmingham — a club boosted in recent times by the high-profile involvement of NFL legend Tom Brady — was played in a fierce atmosphere, underlining the growing intensity between the two sides.
With global attention on the fixture, it felt like more than just another league game, and the home supporters made their feelings clear as Wrexham’s play-off hopes took a hit.
“You can stick your documentary up your arse,” chanted the Blues fans.
For Scarr, the match also marked a personal milestone. Drafted into the starting XI in place of captain Dom Hyam, it was his first league start since January’s dramatic win over Queens Park Rangers.
READ MORE: Angry Phil Parkinson Demands Answers Over Referee Calls Against Wrexham
While he would have preferred a different outcome, the centre-back is relishing being back in contention and says the competition for places within the squad is a key reason behind Wrexham’s rise.
"It's Wrexham, we sign good players in the windows, so you know you're going to be up against it [to play], but that's what's got us where we are today," he said.
"Everyone pushes for a place, everyone pushes each other on. It's good competition in the group and unfortunately I haven't played for a while, but I'd like to think I'm ready to step in when I can.
"I've had to wait my time to have a go. Coming in as a defender you want to do a little bit better than that scoreline shows. But it's good to be back and it was good to get a little run out."
Manager Phil Parkinson explained the decision to rotate his squad, highlighting the physical toll of a demanding schedule.
"I feel with Dom, he's played so much football recently.
"Then we go to the international break and he played for Scotland where the others who went away didn't play in that midweek game.
"I thought he just looked fatigued on Tuesday [against Southampton] but he's been brilliant for us.
"He's a fantastic character, a great lad, but Scarry equally has been brilliant for us over the last couple of years and he deserved his chance today."
Attention now turns to Saturday’s crucial home clash with Stoke City, who arrive in north Wales on the back of five straight away defeats.
For Wrexham, it is quite simply a case of now or never.
Four games remain, and while the margins are tight, Scarr’s message is clear — the dream is still alive, and they are not ready to let it go.
