After doing a bit of summer cleaning with the cancellation of “American Gothic” and “BrainDead,” CBS is stocking back up on hot-weather fare. To start with, it has ordered 13-episode “event” series “Salvation” from Alex Kurtzman’s Secret Hideout production company and CBS TV.

The hourlong series centers on an MIT grad student and a tech superstar who stumble upon the discovery of a (probably much-shortened) lifetime: An asteroid is six months away from colliding with the earth. The show will join the CBS summer sked with the third season of “Zoo,” the show based on the James Patterson novel about animals turning the tables on their human oppressors, and another installment of “Big Brother.”

“‘Salvation’ is the type of fast-paced, dramatic ride that viewers look for in a summer event series,” said CBS Entertainment president Glenn Geller. “We’re excited to launch another high concept, highly promotable show with great auspices that adds to our roster of year-round, original scripted programming.”

Liz Kruger and Craig Shapiro wrote the script, which is based on a story by Matt Wheeler. Kurtzman, Heather Kadin, and Peter Lenkov will serve as executive producers. Kurtzman, who is under an overall deal at CBS, is also one of the executive producers behind upcoming series “Star Trek: Discovery,” which is set to debut exclusively on CBS All Access, the network’s subscription video streaming service, in May.