TAMPA, Fla. — It was fourth-and-Hollywood ending, and directly in front of him as clear as day was this glorious paydirt, and the prospect of a comeback that would make the best possible opening chapter in any Legend of Daniel Jones.

So Jones took what they gave him, these longest 7 yards, and this Comeback Kid they call Danny Dimes, but could also call Crazylegs, was in the end zone with 1:16 remaining, and he was screaming, and rookie receiver Darius Slayton was screaming along with him.

“That’s the most emotion I think I’ve seen him show,” Slayton told The Post. “He just lit up like a Christmas tree.”

And soon, because the football gods, not desiring to ruin a kid’s moment of a lifetime, made sure Matt Gay missed his last-second 34-yard field goal wide right like Scott Norwood, so Daniel Jones and the Giants would be celebrating a Ripley’s Believe It or Not 32-31 victory as if they had won a Super Bowl.

“Saw the grass and took it,” Jones said.

Saw the moment and seized it.

On this historic day, when he fashioned the second-largest comeback by a rookie quarterback in his first game, he became “The Danchise.”

The Future was Now, finally, for Jones and for the Giants, and as night fell on their Boy of Summer hours from when autumn was to fall, all of a sudden the Future was Wow.

Dual Threat Danny (23-36, 336 yards; 2 TDs, 2 fumbles, 4-28-2 TDs rushing) was tough as nails and so poised and fearless and armed with accuracy and decisiveness and RPO wheels and more moxie than anyone knew he had in him, and he simply would not let his team lose and found a way to win.

He was Fire, and he was Ice.

But someone please check the kid’s postgame pulse.

“Awesome win,” Jones said in his understated, matter-of-fact way. “Fun to be a part of.”

And if it caused some Big Blue romantics to hearken back to a previous golden era, they might have called him Danny Manning.

Or maybe on this memorable day call them Danny and the Miracles.

The Danchise, grateful to have Manning serving as his eyes and ears and cheerleader, took the ball with 3:16 and no timeouts left, and barked in the huddle: “Let’s go win this game, boys.”

He found Slayton for 21 yards, Sterling Shepard wide open for 36, and then it was fourth-and-5 at the 7.

“I was hoping it was an Eli moment,” Chris Mara told The Post.

Jones-Against-the-World. The World didn’t have a chance.

John Mara walked briskly but undeniably proudly out of the locker room when someone suggested this should be a great moment for him and the franchise.

“It is a great moment,” Mara said.

With the Giants down 28-10 and with Saquon Barkley (high ankle sprain) on crutches and clad in a walking boot on the sideline when the second half began, Jones didn’t flinch. He fired a bullet that Evan Engram caught at the 40 and turned it into a 75-yard touchdown pass. And then he found Shepard with the two-point conversion that cut the deficit to 28-18.

And here he came again.

Flushed to his left, Jones uncorked a 46-yard bomb to Slayton, and that led to a 7-yard touchdown pass in the right corner to Shepard, a perfectly placed ball that only Shepard could catch, with Vernon Hargreaves on his hip.

Suddenly it was 28-25 and The Kid had lit a fire under the whole damn team.

All he did was make everyone around him better, make everyone rally around him.

Bright-eyed can become wide-eyed in a Big Apple minute when the games count, because checking off all the boxes in preseason is one thing, trying to solve the treacherous traps of defensive savants paid and expected to confuse and rattle rookie quarterbacks quite another.

You can go from Danny Dimes to out of change in the blink of an eye.

Except Jones refused to blink.

It was in the second quarter, the Giants trailing 12-3, when Jones erupted as a football Patton on the drive that ended with him beating M.J. Stewart to the right pylon on a 7-yard touchdown run.

“Let’s f—–g go! Let’s f—–g score!” Jones bellowed.

On his way out of the locker room, Jones said: “I was just excited.”

Pat Shurmur was glowing. He believed in Jones from Day 1. His team sure believes in Jones. Dave Gettleman, when asked on draft night what he would tell Giants fans angry that he had reached for Jones with the sixth pick, said: “In time you’ll be very pleased.”

In no time.

“I was absolutely shocked,” Frank Mara said. “I’ve never seen a rookie quarterback, on our team, come in and play like that.”