A youngster from Brooklyn is bringing smiles to the NYPD, one officer at a time.

Zachary Becerra may only be 7 years old, but he's on a mission to hand-deliver superhero cards to every police officer to thank them for their service.

When Becerra heard about the deaths of detectives Rafael Ramos and Wenjian Liu, he was crushed and wanted to do something.

Zachary and his mom, Rosa Ortiz, have dedicated nearly every Saturday since December to visiting New York police officers. So far they’ve gone to 52 precincts, seven transit units, two housing units and 13 specialty units.

He's handed out out more than 2,000 cards, and Ortiz has been documenting the visits on her Twitter page.

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