Military-funded dinosaur-creating project totally unexpectedly goes awry, and dinosaurs rampage through the vast underground Science Facility. The tone was more college-parody-movie than a Coen Brothers version of Jurassic Park: spooge jokes, a guy who falls in love with a T-rex after artificially inseminating it, and Army Man punching a T-rex in the face for America.

Featuring:

Dr. Guy Waterson (Mike): Head science guy. In the middle of a messy, shouty divorce with...

Miles Sterling (Eddie): Also science guy. A pacifist, he sabotaged the military use of the dinosaurs by making them all docile (this may not have been quite as permanent as intended). Co-founded the project with Guy, but has not done well out of it. Wants the dinosaur genome as part of divorce settlement.

Colonel Daniel MacHaig (Sam): the military guy, and the money. Rules the project as a personal fiefdom. Spends most of the plot shirtless and angry. Insists on testing the military awesomeness of dinosaurs himself, armed only with a hand-taser. Wants Waterson to quit stalling and produce a dinosaur with military applications already.

Roger Watkins (Caroline): Stoner scientist. Incompetent, but has earned MacHaig's respect through their mutual love of tasing the shit out of dinosaurs. Responsible for most of this mess through mixing up semen samples, forgetting to deliver crucial memos, and having a life-changing moment while shoulder-deep in a T-rex cloaca.

This was a very quick session: we were done in under two hours. A big part of this was that the basic plot arc was pretty much established by the premise, so we were to some extent just threading beads on a wire: but we also had some very efficient one-beat scenes. Also, good use of the principle that you don't need to set stuff up before it happens: get straight to the dramatic moment, then explain it with flashbacks if necessary.

Freeasco worked a lot better than I expected: a big effect seems to be gravitating the plot towards story-everyone-knows territory. (Or requiring it; it might be impractical to do an era-specific setup that way.)