Dog trainer Cesar Millan has cut a deal for a new series on Nat Geo Wild, “Cesar 911,” which will bow simultaneously in March on the Spanish-language Nat Geo Mundo channel.

New skein plunges him into the heart of communities as he answers their call for help with unruly hounds. Skein debuts simultaneously March 7 in the U.S. and internationally on Nat Geo Wild under the title “Cesar to the Rescue” in April. Nat Geo Channels will unveil the series at the Television Critics Assn. press tour today.

“I have a much bigger audience outside of the U.S. now” thanks to Nat Geo’s growing reach with overseas channels, Millan notes.

The launch of his latest series caused Millan to reflect on how far he’s come as the nation’s best known dog trainer. Some 20 years ago, he was an in the U.S. as an undocumented, homeless immigrant who lived under bridges and was unable to speak a word of English.

“Cesar 911” is produced by ITV Studios America in association with Leepson Bounds Entertainment. Each episode will include two stories within a community.

Millan first meets with the people who’ve complained about the dog or dogs and then makes impromptu visits to the locations where the dogs display their problematic behavior. He then evaluates and gives rehab advice to the owners on the spot. In more serious situations, he relocates the hounds to his Dog Psychology Center for more in-depth rehabilitation or invites owners to his new Home Learning Annex to hone their dog training skills in a controlled environment.

Millan, David Leepson and Jordan Roberts serve as executive producers. Nat Geo Wild’s Janet Han Vissering and Geoff Daniels exec produce for the cabler.

Millan got his start on TV with Nat Geo’s “Dog Whisperer” which had a nine-season run that ended in 2012. Reruns are still widely seen in the U.S. and abroad. Millan’s most recent Nat Geo Wild series, “Leader of the Pack,” bowed in January 2013.

There is talk of developing international editions of “Cesar 911” for Asian and Latin American markets.