“Spontaneous Construction” 8 tonight, HGTV

What It’s About: On March 15, Lori, 51, and John Enright, 52 — parents to six kids, two dogs and a ferret — received a call that would appear to come under the heading of “Providential.” A new series on HGTV, “Spontaneous Construction,” hosted by Ricky Paull Goldin, would like to rebuild the Enrights’ Long Beach home, ruined — along with so many others in the tristate area — by the devastating floods that accompanied superstorm Sandy.

In the show, Goldin harnesses social media to draw a flash mob — he calls it a task mob — to the Enrights’ home, where they clean up the mess (mostly ruined drywall, flooring, wiring and plumbing) before the pros arrive to bang out the job — in three days, no less. One of the show’s gimmicks? The flash mob does a rousing dance — to “New York Groove” — before they start swinging the hammers. Another: “The View’s” Sherri Shepherd turns up to help.

My Say: “Spontaneous Construction” is “Extreme Makeover: Home Edition” with a funky twist — a flash mob with happy feet. The biggest shock was seeing 150 flash mobsters kick-step their way through a synchronized chorus line while singing the old Ace Frehley hit. As mentioned, funky but nice.

In true “Extreme Makeover” spirit — and stop-motion photography — a beautiful new home does, in fact, emerge, and the Enrights, who seem like a wonderful family, are made-for-TV ecstatic. Upbeat and infectiously pleased — genre traits, by the way —“Spontaneous Construction” doesn’t tarry long enough to allow viewers to wonder about the many thousands of others still in need, or ask why the Enrights are any more deserving than any of those. But under the heading, “it’s the thought that counts,” this is a good thought that counted, and one that just might inspire other spontaneous construction projects in the months ahead. Which is another way of saying, the next flash mob you see may well be dancing with sledge hammers.

Bottom Line: A feel-good exclamation point for a deserving family.