'This Is Us' Sneak Peek: Randall & Kevin Search for Answers About Jack (PHOTOS)

Meaghan Darwish

After the big reveal in the final moments of the This Is Us episode "Toby," fans are eagerly awaiting answers about Jack's (Milo Ventimiglia) necklace — but could they get them as soon as the following week?

In sneak peek photos from the upcoming "Kamsahamnida," Randall (Sterling K. Brown) and Kevin (Justin Hartley) bond over the research Kevin's done on Jack's Vietnam past. But what does that lengthy episode title mean? A quick Google search reveals that "Kamsahamnida" is the Korean word for "thank you."

'This Is Us': 3 Theories for the Truth Behind Jack's Necklace From Vietnam

'This Is Us': 3 Theories for the Truth Behind Jack's Necklace From Vietnam

Plus, find out what fans are saying about the revelation.

Once again, the writers have us stumped, but as Tuesday approaches, we can try to find clues in the photos above. Click through the gallery for your sneak peek!

This Is Us, Tuesdays, 9/8c, NBC