Revenge Season 1, Episode 6 Sneak Peek: It's a Fiery Fourth of July on "Intrigue" (PHOTOS)

The Grayson 4th of July parties are legendary, but this year's festivities ignite the wrong kind of fireworks when an incriminating surveillance video pops up and breaks the bond of trust between the Graysons and their head of security, Frank. Frank won't go down without a fight, which spells trouble for Nolan and Emily. Meanwhile, the tension between Emily (Emily VanCamp) and Tyler (guest star Ashton Holmes) comes to a head, Daniel (Josh Bowman) can't seem to catch a break, and both Porter boys (Nick Wechsler and Connor Paolo) make bold moves to get their girl.