Pre-teen genius creates giant-making goo which some teens eat and then take over a town.
Beginning of the episode
A 'modified' line originally quoted by Rick from 'Casablanca.'
Reference to the comic book/cartoon that became popular in the late 1980's.
A reference to an ad for women's 'underthings.'
A take on the Biblical Psalm 23's quote: 'Yea, though I walk through the valley of the shadow of death.'