Video! Bikers Attack SUV with Young Family Inside

One member of the posse filmed the terrifying footage with a camera mounted on his helmet and posted it on YouTube.

In the six-minute-plus clip, Alexian Lien and Rosalyn Ng's Range Rover – also carrying their 2-year-old daughter -- can be seen traveling down the West Side Highway as motorcycles surround them.

It appears a biker stops in front of the vehicle and Lien rear-ends him. A scuffle ensues.

Police Commissioner Ray Kelly explained at a press conference, “They take their helmets and they start to dent his car, and apparently his tires are slashed with a knife.”

Lien managed to speed off, but hit several bikers as he tried to get away. The gang, known as Hollywood Stuntz, was right on his tail. “He feared for his life and the lives of his wife and daughter,” Kelly said.

The bikers chased him for 50 blocks. When his car couldn't go any further, due to the slashed tires, the men bashed in his window with helmets.

Alexian was then dragged into the street and beaten in front of his wife and child. After the confrontation he was rushed to Columbia University Medical Center. He required stitches to his face and chest and had two black eyes.