Chuck

Once again Chuck becomes the intersect.

When Sarah disarms Quinn in the Wienerlicious using a skewer it is very similar to how she disarmed Casey in the Wienerlicious in the second episode: "Chuck versus the Helicopter"

Featured Music:
"The Head and the Hear"t by Rivers and Roads (end of the episode)
"Goshen" by Beirut
"Symphony No. 9 in E Minor "From the New World" IV. Allegro con fuoco" by Antonín DvoÅ™ák
"Take On Me" by A-ha!
"Cruel and Beautiful World" by Grouplove

This episode ends with just the typed word "Chuck" backed with a black screen. This is the same as the opening credits screen of the pilot episode of Chuck.

Featured Music:
"Your Hands" by Ghost Society

When breaking into DARPA, Sarah is seen wearing (ridiculously) high heels. However, moments later, as she is running through the halls, she's wearing (much more sensible) flat heels.

A lot of the moves that Sarah uses when breaking into the DARPA facility are the same moves Bryce Larkin when he was stealing/destroying the first Intersect in the pilot episode. This includes kicking through the window above a door frame, grabbing a pipe and twisting to attack, and sliding under a table and using the chair as a projectile.

Featured Music:
"Days Are Forgotten" by Kasabian
"Misspent Youth" by Clap Your Hands Say Yeah
"O'Canada" by Third Marine Aircraft Wing Band, US Marine Corps
"Another Wave From You" by M83
"She Tows the Line" by Crooked Fingers

Sarah is now the new intersect.

Featured Music:
"The Weight" by The Band
"Don't Stop (Color On The Walls)" by Foster The People
"No Siesta" by MC Juan
"Rock the House" by The Deekompressors

Featured Music:
"Ice Cream" by New Young Pony Club
"Take My Hand and Lead Me Home" by Simian Ghost
"Pucho's Descarga" by Pucho & His Latin Soul Brothers
"He Regresado" by En La Palma Orchestra
"The Honest Truth" by Typhoon

Featured Music:
"The Black Block" by Modeselektor
"Clownin Around" by Deer Tick
"Life, Oh Life" by Dads
"We Are Young" by Fun feat. Janelle Monae

Featured Music:
"Rockin' Around the Christmas Tree" by Brenda Lee
"We Wish You a Merry Christmas" by The Platters
"Silent Night" by the Washington National Cathedral Choir
"White Nights" by The Golden Filter
"Love Can Drive Your Mind Wild" by The Kickdrums

Featured Music:
"I Want the Lights on After Dark" by Memphis
"All Around The World" by Theophilus London
"All My Ex's Live In Texas" by George Strait

Featured Music:
"Get Fresh With You" by Teddybears feat. Laza Morgan
"Love the Way You Walk Away" by Blitzen Trapper
"O, Canada" by Danny Pudi
"No Problem" by Chase & Status

Morgan reveals that they used to call Chuck, "The Piranha" in his days as a hacker.

Featured Music:
"Get Together" by Tim Myers feat. Serengeti
"Silver Hands" by Alameda
"Hot Hot Hot" by Buster Poindexter
"Only For You" by Heartless Bastards

Featured Music:
"Raw Meat" by The Black Lips
"Rock The House" by The Deekompressors
"Strangers In The Night" by The Morning Benders
"Here's a Little Something For Ya" by The Beastie Boys
"Through The Crowd" by Hotel Lights

Nitpick: Although John Casey is no longer employed by any government organization he is still addressed as Colonel.

This is the first time that we see side-effects of Morgan's Intersect, like losing memory and changing personality. In this episode Morgan doesn't remember some of the popular culture references: Indiana Jones, movie trialogies, Luke Skywalker.