The Nets were minutes away from coming home with the series tied. Now they may be hours away from going home for the summer.

After Saturday’s stunning collapse and eventual 142-134 triple-overtime loss to the Bulls in Game 4, the Nets are down 3-1 in their best-of-seven first-round series heading into tonight’s Game 5.

Interim coach P.J. Carlesimo says his Nets may be down, but they’re not out.

“Playoffs are a game at a time,” Carlesimo said on a conference call yesterday. “The mindset will be totally different [tonight], and if we can get the job done, it will be totally different going into [Game 6] Thursday.

“You win or you go home. It’s as simple as that. This is, for us, an actual example of that, and I think we’ll respond to that. I also don’t think that it’s difficult for our guys to feel they’re capable of doing this ... [the players] know we can do it, they know this game is in Brooklyn, and I do think they’ll bounce back and I do think [coming back] is doable.”

When the Nets held a 14-point lead with three minutes remaining in Game 4, it looked as if they were on their way to heading back to Brooklyn with the series knotted 2-2. But then they fell apart, allowing Nate Robinson to power the Bulls to a 14-0 run that tied the game and eventually forced overtime, a late-game collapse that Carlesimo called “devastating.” NBA teams are 8-202 all-time in series after trailing 3-1.

After giving the Nets yesterday off — outside of six or seven players, according to Carlesimo, coming in for treatment — he said though the team would review some specific plays from its disastrous final few minutes of regulation in Game 4, the focus instead would be on putting the performance behind them and focusing on extending their season.