What Cable Is This?

[Arielluria]

I started a discussion on the Monk lover's group on Ravelry about what looks to be a great handknit sweater on an episode (pic below). I love the sweater and the color! I'm interested in the front cable, it's very interesting and each leg of it seems to be twisted as well. Does anyone know what it might be called or where I can get it?

I got my Harmony Cable & Aran Stitch Guide this week! Now I can start planning DH's fisherman's sweater!