Philadelphia police are looking for five men in connection with an assault outside Geno's Steaks on June 11.
The men, all caught on surveillance video, fled in two cars - a dark colored pickup truck and an SUV - both with New Jersey license plates.
Police are also looking for one woman described as a getaway driver.
Police did not provide information about the assault, but said the video of it was "too graphic" to release.
Patrick Kane, a victim of the attack, provided this account.
He said he and his wife, Brooke Kane, had spent the night at a friend's wedding and then at an after hours club with another couple, when they all decided to grab a bite to eat at Geno's.
They were just finishing up their cheese steaks when Brooke Kane's girlfriend asked another group of patrons if she could bum a cigarette, Patrick Kane said.
"That is when the guys just lost their minds," said Patrick Kane, 31 and a maintenance supervisor at an apartment building.
In seconds one man stood up, put his hand over the face of the woman and pushed her across the sidewalk, said Patrick Kane.
"'Don't mess with us, we belong to ISIS,'" Kane said the man shouted at them.
Brooke Kane, a daycare teacher, stepped in to help her friend. The ISIS comment was not a joke she told them before she too was struck, Patrick Kane said.
At that point he and the other man stepped in to try and help the girls with the intention of leaving.
"What went from putting hands on two girls became five guys attacking us," said Kane.
Patrick Kane said one man punched him in the nose, which started bleeding. He was then punched in the back of the head by another man and hit twice in the eye. He remembers Brooke screaming at bystanders for help and to call police, the five men running off, someone from Geno's giving him a bag of ice and police and EMTs arriving on the scene.
Patrick Kane said he declined further medical treatment for what he called a black eye and small cut. The couples spent until 5 a.m. at a police station giving their statements, he said.
"It is ridiculous that this even happened," said Patrick Kane. "I don't know why things have to escalate like this."
Anyone with information is asked to contact the Central Detective Division at 215-686-3093 or 3094. To submit an anonymous tip dial 215.686.TIPS (8477) or text a tip to PPD TIP or 773847.