A description from Fox of "The Parts in the Sum of the Whole," the 100th Bones episode: "The milestone 100th episode, 'The Parts in the Sum of the Whole,'takes viewers back in time six years as Brennan and Booth recount to Sweets the first case they worked on together. With Sweets finishing his book on their partnership, Brennan and Booth take this opportunity to set the record straight on their initial pairing before his book goes to print. While working on a case six years ago, young and rebellious FBI Agent Seeley Booth seeks the help of Dr. Temperance Brennan and her team of scientists to hopefully find the evidence that will prove his high-profile suspect guilty. Although in unfamiliar territory, Dr. Brennan, her grad student Zack (guest star Eric Millegan) and Dr. Jack Hodgins (TJ Thyne) get right to work, impressing Booth with their knack for uncovering new leads and substantiating his theory about a well-connected district judge. While the case cements a foundation for a successful future partnership, it also reveals the convoluted beginnings of the formidable duo – whose feelings for each other almost ended the partnership before it had even begun."
Source: Chicago Tribune
Tipster: FayChoy