On May 17, 1968, nine Roman Catholic activists broke into a draft board office in Catonsville, Maryland, transferring 378 files to the parking lot to be incinerated with home-made napalm. As the fire burned, the “Catonsville Nine” prayed for peace. They were arrested, tried and sentenced to prison, but four of them, including two priests—Daniel and Philip Berrigan—went underground, eluding capture for a number of months, occasionally surfacing to speak at antiwar rallies.
At one of these public appearances, following a dramatic tableau of the Last Supper with giant puppets, Dan Berrigan made his escape inside one of the apostles.