Josh Holt

When Gran (recurring guest star MARION ROSS) dies suddenly, Richard has an emotional breakdown. Emily handles the funeral arrangements with her usual efficiency--until she finds a letter Gran had written to Richard years earlier, begging him not to marry Emily. Lorelai is forced to take over the preparations, leading to her own small breakdown while buying new clothing for Gran to be buried in.

A human isolationist leader threatens to destroy Starfleet Command unless all aliens leave Earth immediately.

Don and his team hunt for the killers of two rock climbers found in possession of a large diamond. Also, Charlie decides if he should try to get his FBI clearance reinstated, and a new agent joins the team, on the fifth season premiere.