Hawaii Five-0 Season 4 First Look

Peter Lenkov (@PLenkov) tweets, "Very lucky to be working with such super talent #H50"

Peter Lenkov (@PLenkov) tweeted this shot from behind the scenes of Season 4 Hawaii Five-0.

Peter Lenkov (@PLenkov) tweeted this photo from on set.

Masi Oka (@MasiOka) tweets, "So many cameras."

Masi Oka (@MasiOka) tweets, "That is a huge flyswatter. (Used to diffuse sunlight)"

Masi Oka (@MasiOka) tweets, "And we're back!"

Daniel Dae Kim ‏(@danieldaekim) tweets, "Gettin' ready for SEASON 4. #H50"

Daniel Dae Kim (‏@danieldaekim) tweets, "Arriving for my 1st day on #H50 Season 4. This makes 10 years for me on this beautiful island. #lucky"

Daniel Dae Kim (‏@danieldaekim) tweets, "SPOILER ALERT: Chin's character's gonna be a little different this season. “@PLenkov: The flying Chin #H50 Day 1"

Daniel Dae Kim ‏(@danieldaekim) tweets, "Bruthas! #H50 #LOST @hicusick"

Daniel Dae Kim ‏(@danieldaekim) tweets, "Keeping the trailers of #H50 safe #KonaOnDuty"

Hawaii Five-0 fans, feeling LOST? You are going to love this! Hawaii Five-0 moves to Fridays at 9/8c #Five0Fridays. Catch the new season starting Friday, September 27th. Photo credit: E-PR

Daniel Dae Kim relaxes behind the scenes during the filming of the season premiere of Hawaii Five-0.

Daniel Dae Kim shares a laugh from behind the scenes while filming the season 4 premiere episode of Hawaii Five-0.

Daniel Dae Kim takes a knee during filming of the season 4 premiere episode of Hawaii Five-0.

Alex O'Loughlin handles his own stunts during the season premiere episode of Hawaii Five-0.

Alex O'Loughlin climbs aboard a helicopter during the season 4 premiere episode of Hawaii Five-0.

Peter Lenkov (@PLenkov) tweets, "Editing #H50 417 - Guess who??"