The real me: A lot of personal secrets come out - Sikozu is a bionoid, Stark is still alive and bent on revenge, and Scorpius is... a Scarran spy?�If we can believe even that, of course.

Floral food: Oddly, the favourite food of Scarrans isn't live rats or still-beating hearts, but a flower, Chrystherium Utilea.�What's actually used in the show is the Bird-of-Paradise flower, a South African plant with spiky red blooms.

The John Crichton guide to pop culture.

The dark side: Katratzi looks awfully like a certain Death Star.

How Crichton learned to love the bomb: John's possession of a thermonuclear device leads to many references to Earth's nuclear history.� He names it Fat Man after the bomb dropped on Nagasaki at the end of World War II, a bomb which many believe was unnecessary.� He calls himself Johnny Radiation - probably a reference to kid's cartoon Jimmy Neutron.�

Having put everyone in a position of mutually assured destruction if anyone attacks, he says "Welcome to my cold war,"� and after facing down War Minister Akhna, he retorts "Get ready to kiss your ass goodbye, Castro." It's a reference to the Cuban missile crisis of 1962, when Kennedy forced the removal of nuclear missiles from Cuba by threatening to use his own nukes.

Scarran blues: "It'll be John Lee Hooker time." says John.� John Lee Hooker was one of the most famous US blue musicians, with a career spanning over four deacades.� John may mean that they'll all be feeling blue if his bomb goes up, or it may be a reference to Hooker's 1961 hit Boom Boom.

Captain America:�"I can leap whole galaxies with a single bound.� I can scorch planets with a wave of my hand," Crichton tells Staleek, Akhna and Grayza.� He's either imagining himself as a superhero, or remembering the classic Playstation advertising campaign "I've commanded armies."

As to why he's there, he announces it's "Because I am an American."� And as such, he wants capitalism.� No doubt utterly confusing the aliens, he�compares his offer of wormhole knowledge for money�to a�supermarket style "blue light special in aisle three," and offers that favourite catalogue free gift of "a set of�steak knives" along with the knowledge.

Robo-ho: John refers to the Aeryn bionoid as a fembot - probably a reference to the sexy female robots�who attempt to seduce Austin Powers in the first Powers film, International Man of Mystery. (1997)

A fatal exception has occured in your wormhole: Assured by the Staleek that his safety will be guaranteed, John points out that "Bill Gates can't even guarantee Windows," referring to the well-known tendency of Microsoft products to crash.

Oooh, Smithers: "Feel the love, Mr Burns," says John when Braca saves Scorpius.� He's comparing Braca to Smithers from The Simpsons, a slimy yes-man who sucks up to his boss relentlessly.