The dam shown in the establishing shot that begins the last part of the episode is Hoover Dam. It is located on the Colorado River, which forms the border that divides Arizona and Nevada.
Marcus: We've got three teams out covering this entire area here.
The lighthouse used for the GLA's hideout is the Point Vincente lighthouse in Palos Verdes. The area Marcus is describing is actually the Los Verdes Golf Course; the map on the blackboard is semi-accurate, except that it's California State Highway 107 that runs past the real lighthouse (the blackboard reads "Highway 105") and there is no "Flat Road" in the area.
Hannibal: (while throwing a grenade) Come and get it!
This shot actually appears twice in the same chase sequence; later in the sequence, Hannibal throws a second grenade -- it's the same shot as the first, but without the line of dialogue.
Marcus: What're you going to do to me?
Murdock: Use your imagination, or you can borrow mine.
Ramon: You're all dead men!
Face: Really? Gee, I didn't think I'd feel this good after I was dead!
(to everyone in the room)
I want to thank you all for coming to the funeral.
Murdock: The Colonel really bends my mind out of shape, ya know?
B.A.: Man, if your mind was bent out of shape, it'd be straight, fool.
Murdock: (in a game show host voice) Jennifer, you've won an all expenses paid kidnapping with the terrorist of your choice.
Murdock: All we have to do is follow the bouncing ball.
Murdock says this line impersonating US comedian Paul Lynde.
Murdock: We gotta pop a Brodie and get moving.
A "Brodie" is a wild, flamboyant, or even suicidal leap, named after Steve Brodie, who claimed to have jumped off the Brookyln Bridge on July 23, 1886, and survived. Whether he was telling the truth or not, his alleged stunt eventually turned his last name into a slang term.
Face: Fair's fair in love and war ... and all that stuff.
According to Bartlett's Familiar Quotations, "All's fair in love and war" appears in the 1850 novel Frank Fairleigh by Francis Edward Smedley.
Murdock: (to Face) Well, I'm gonna go get my gun. And then I'll catch you on the flip side.
Back in the days when radio DJs played vinyl records instead of CDs, a DJ might choose to let a record play through to the end of one side without interruption; "I'll catch you on the flip side" meant that he wouldn't talk again until it was time to turn the record over to play the other side.
Face: B.A. did 15 rounds with Godzilla.
The first Godzilla film -- called Godzilla, of course -- was released in 1954 by the Japanese film studio Toho Company Ltd., which has made 28 Godzilla films to date.
Hannibal: We stand for truth, justice, and the American way.
Hannibal echoes here a phrase strongly associated with Superman after it was used in the intro to the 1950s TV series Adventures of Superman. The series, which ran from 1952-1958, described Superman at the beginning of each episode as fighting "a never-ending battle for truth, justice and the American way!" The phrase was first associated with Superman a decade earlier when it was used briefly for a couple of years (1942-1944) in the Adventures of Superman radio show, which ran from 1940-1951.
Murdock: (after punching out a bad guy) Pop goes the weasel.
"Pop goes the weasel" dates back to 17th century England, though the exact meaning of the phrase is unclear. The song is often used for jack-in-the-box toys.
Hannibal: Only I'm a cab driver, not Joan of Arc.
Joan of Arc, acting on what she believed were visions from God, led the French to victory over the English during the Hundred Years' War, allowing Charles VII to be crowned king of France on July 17, 1429, in Reims Cathedral. Joan was captured in 1430 and burned at the stake fourteen months later. She was beatified in 1909 and canonized in 1920, making her a recognized "saint" in the Catholic church.
Hannibal: I get a $20 tip and a suitcase I'm told to deliver in the middle of nowhere, up your Khyber Pass.
Khyber Pass connects the modern-day countries of Pakistan and Afghanistan. Over the centuries, many missions of conquest have used the Khyber Pass, leading Rudyard Kipling to describe it as "a sword cut through the mountains." George Molesworth, who was part of the British invading force in 1919 during the third Afghan War, said, "Every stone in the Khyber has been soaked in blood."