(Warning: spoilers about Tuesday's episode of NCIS: New Orleans ahead!)

You know how it is when you start a new job: you're so jittery and excited you're prone to making a complete fool of yourself by tripping over your own feet, or worse.

As you'll see in this exclusive video, NCIS: New Orleans' forensic scientist Sebastian Lund's (Rob Kerkovich) "worse" is arriving to work super early (which is great!) but with unintended consequences (which is bad).

NCIS: New Orleans: Sebastian's first day as an agent doesn't go well

"He comes in at 5 a.m. because he's so excited," Kerkovich told TVGuide.com in an interview, "already wearing the hat and jacket and everything." Only, true to Sebastian form, he's not exactly smooth with his delivery and things look like they're about to go way left. Luckily, as he so often does, Sebastian gets saved by a stroke of luck, and not a moment too soon.

Rob Kerkovich as Forensic Scientist Sebastian Lund, NCIS: NEW ORLEANSRob Kerkovich as Forensic Scientist Sebastian Lund, NCIS: NEW ORLEANS

NCIS: New Orleans airs Tuesdays at 10/9c on CBS.

(Full disclosure: TVGuide.com is owned by CBS.)