Shocking footage shows alleged Brooklyn gangbangers gleefully firing guns into the streets and reloading a weapon on a subway train.

The videos were released Tuesday by the Brooklyn District Attorney’s Office as it announced a slew of charges against 21 alleged members of Folk Nation-affiliated gangs, including murder, conspiracy to commit murder, robbery and weapons possession.

“These defendants terrorized the streets of Brooklyn by opening fire on perceived rivals and recklessly firing their guns — including in broad daylight — endangering innocent bystanders,” said Brooklyn District Attorney Eric Gonzalez.

The fresh charges against accused members of the Super Rich Kids/Street Rich Kartel and Newkirk gangs relate to the slaying of an innocent 15-year-old boy named Rohan Levy in Flatbush in 2017 and a number of other attacks on rival crew members in Brooklyn.

Those charged include Zidon Clarke, 20, who was previously busted for killing Levy, and Walter Porter, 41, and his sons Khaysean, 21, and Keemari, 19, who allegedly were found driving a car with pistols used in that shooting and several others.

In one clip released by prosecutors Tuesday, Travis Laroc, now 17, is allegedly seen grinning as he loads a magazine with bullets on a subway train in December 2016, prosecutors said. He is then allegedly seen on surveillance footage hours later opening fire on a rival in the middle of a crosswalk on a commercial strip in Crown Heights.

“This is people going about their holiday shopping,” Gonzalez said at a press conference.

“Imagine the fear you would have sitting on that train and seeing these young men loading guns.”

In another clip, a grinning Khalil Irving, now 18, is allegedly shown standing on a rooftop and firing a handgun into the air above other houses.

Yet another allegedly shows Keemari — also known as “Kush” and “Kush Blixky” — calmly opening fire from a doorway across a courtyard to other buildings.

The 65-count indictment also details alleged communication between the teens and men about shootings and other crimes — including the attack on Levy.

“Y’all don’t say nothing what happened today keep it to y’all self… And SRK… YALL Don’t KNOW S–T I REPEAT YALL Don’t Know S–T… It might be clipped… For me,” Laroc allegedly messaged other SRK members after the shooting.

NYPD Chief Terence Monahan on Monday accused Gonzalez of going too easy on gun-possession cases by allowing suspects to enter no-jail diversion programs.

But the DA said Tuesday that no one involved in the shootings would be eligible.

“Diversion, you know, is a very small slice of cases that we do. But to make it clear, no one who is involved in these kinds of acts of violence are eligible for diversion,” he said.