The first time the term "wesen" is used, from the German word meaning "being, creature, nature, essence."
Another version of the tarantella dance legend says that the spider venom can be flushed out of your system if you dance so wildly that you sweat it out.
Opens with the quote "Instantly, the priestess changed into a monstrous goblin-spider and the warrior found himself caught fast in her web." from the Japanese story "The Goblin Spider". In the show, Nick's ancestor claims to have learned of the Spinnetod from a Japanese man.
Tarentella is a southern Italian folk dance popular in Southern Italy and Argentina named after the bite of a common wolf spider locally called the "tarantula" that supposedly sent the victim into a wild, flailing state.
First appearance of Sargeant Franco, sometimes Wu's partner and sometimes the person filling in when he's busy elsewhere.