■ It’s a race to make sure Superman is born on Syfy’s “Krypton.”

YOU don’t tug on Superman’s cape. Jim Croce warned against that way back in 1972. But the singer-songwriter never said anything about taking Superman’s cape and traveling through time and space to convince Superman’s grandfather residents of Kandor City that Krypton was doomed.

“The name El will be struck from the registry of citizens,” Daron-Vex (Elliot Cowan), Kandor’s chief magistrate, announces before ordering the familiar “S”-looking sigil removed from the clothing of a young Seg and his parents. Seg’s once well-regarded family is stripped of its status and cast out of Kandor society to join the ranks of the rankless.

Fast-forward 14 years, and Seg is a pretty boy in a leather jacket who runs from the law and gets into bar fights for money. At one point, he even throws a Superman punch for good measure, so maybe it’s a genetic thing.

When he isn’t getting into trouble with the law, Seg is busy bedding Lyta-Zod (Georgina Campbell), the daughter of Kandor’s military leader, Jayna-Zod (Ann Ogbomo), who’s yet to either become or beget a general. That doesn’t stop Daron-Vex from telling Seg that he’s been chosen to bind with Daron’s youngest daughter, Nyssa (Wallis Day), and join the House of Vex, thereby officially ending the House of El.

Since that shouldn’t happen, according to “Krypton,” intergalactic time-traveler Adam Strange (Shaun Sipos) confronts Seg and shows him Superman’s cape, which slowly begins disappearing — a la Marty McFly and his siblings in that photo from “Back to the Future” — as a way of marking the time they have left to “save” Superman.

Based on the first two episodes, “Krypton” brings up far more questions than it answers. Why wouldn’t Superman simply have found a way to go back to Krypton himself? How would a 12th-string superhero such as Strange get involved? How’d he get his hands on Superman’s cape? What’s Superman wearing? Why would a red cape with the El sigil on it be proof of anything when Val-El died wearing something identical? And, seriously, why in the name of Siegel and Shuster does Seg have a pronounced British accent and call people “mate”?

It requires a logical leap far greater than a tall building in a single bound to believe that the lives of everyone on an entire planet are worth one Superman, but I still have hope for “Krypton.”

The best part of 2013’s “Man of Steel” was the opening sequence set on the dying planet. And “Man of Steel” was written by David S. Goyer, who developed and co-wrote the pilot for “Krypton.”

Then again, Goyer also co-wrote “Dawn of Justice,” so take that with a grain of Kryptonite.

Gavin Bond Syfy Cameron Cuffe portrays Seg-El in Syfy’s new Superman prequel series, “Krypton.”