The Presidio is a 1988 American crime film directed by Peter Hyams and starring Sean Connery and Mark Harmon.

When Austin arrested Lieutenant Colonel Paul Lawrence for drunk driving and assaulted him after insulting Lynch, Caldwell did not support him.

Austin also learns that the getaway car used by Lynch's killer was registered to a civilian named Arthur Peale, who is wealthy and owns a holding company.

In the meantime, Caldwell and Austin visit Peale, who claims his car was stolen and has an alibi for the night Lynch was shot.

Caldwell learns that Peale was previously in the CIA and a military advisor in Vietnam at the same time Lawrence was there.

Caldwell and Austin both figure out that the killer at the Presidio was trying to break into a storeroom to retrieve a bottle of spring water.

Following the lead to the water company, Austin gets the name of the delivery driver, George Spota.

Spota and Peale open the bottle that came from the Philippines, revealing diamonds inside, hidden in the clear water.

The website's consensus reads: "The Presidio is too well-cast and competently directed to be truly painful, but action fans have no shortage of more compelling options.

"[1] Metacritic, which uses a weighted average, assigned the film a score of 31 out of 100, based on 11 critics, indicating "generally unfavorable" reviews.