Opposite starting points
Mac and Charlie promote armed protection while Dennis and Dee oppose it. Both pairs reverse their positions after their experiments.
Supporting source ↗CASE FILE · S09 E02

After Frank appears on Local Television advocating gun ownership, the rest of the gang takes a look at the ownership process and alternatives to find a common ground on this still heated issue.
THE SHORT VERSION · SPOILERS AHEAD
Mac and Charlie promote armed protection while Dennis and Dee oppose it. Both pairs reverse their positions after their experiments.
Supporting source ↗Frank profits from the gun panic, then pivots to selling water filters.
Supporting source ↗A handgun and a curved sword accompany Mac and Charlie’s visit to the school.
Supporting source ↗The television interview combines Frank’s guns with his unfinished sandwich.
Supporting source ↗THE EVIDENCE
Charlie wears a stars-and-stripes bandanna at the principal’s office.Source ↗
Chet interviews Frank about his next campaign.Source ↗
Dee watches Frank’s broadcast with the others.Source ↗
Dennis watches the broadcast beside Dee.Source ↗
Frank brandishes two guns on television.Source ↗
MacIntyre is now a middle-school principal.Source ↗
Uncle Jack appears in Frank’s television debate.Source ↗
Gunther stands behind his shop’s crowded display case.Source ↗
The children gather in the bar for the demonstration.Source ↗
The principal meets the pair again outside the school.Source ↗
Mac studies the confiscated student phone.Source ↗
Mac and Charlie set up a dressed dummy beside the bus.Source ↗
Boxes marked Purify are stacked outside Paddy’s.Source ↗
Frank eats a sandwich during his interview.Source ↗
A cut watermelon sits on the demonstration dummy.Source ↗
Frank explains how the gun panic benefited him.Source ↗
Jack worries that his hands are too small.Source ↗
Charlie invokes Indiana Jones during their weapons debate.Source ↗
The pair discovers the student was discussing a game.Source ↗
Tags document researched occurrences, not every appearance. Read the research notes and attribution.