They came armed and on bicycles, planning a "Mad Max"-style attack.
Their target was PedalPubs in downtown Minneapolis. Their weapons of choice were squirt guns and water balloons.
What they didn't know was that there were off-duty cops among the passengers.
Two of the people-powered, 16-seat vehicles were hit Saturday in the late afternoon in the Warehouse District, said Lisa Stanplin, manager of Twin Cities PedalPubs.
In the first attack, the cyclists rode to the front of the PedalPub and squirted the driver in the face.
In the second, cyclists approached on both sides, squirted passengers with water pistols and hit one woman in the back of the head with a water balloon.
A potential third attack at 4th Street and 1st Avenue N. was thwarted when PedalPub passengers spotted the cyclists' approach, jumped off and turned the tables on the cyclists.
A video posted on YouTube of the aftermath of the third incident shows abandoned bikes littering the street and what appear to be several cyclists being pinned down on the pavement. One cyclist can be heard yelling, "I don't even have a water bottle!" A woman can be heard telling the cyclists that it was "a PedalPub full of cops."