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

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This Is Us - Season 3
Ron Batzdorff/NBC

Jack’s (Milo Ventimiglia) story only continues to build over time. Will more be unveiled this week?

THIS IS US --
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Young Randall (Lonnie Chavis) and Kevin (Parker Bates) making mischief

This Is Us - Season 3
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Who’s making Rebecca (Mandy Moore) smile?

This Is Us - Season 3
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And who is making her upset?

THIS IS US --
Ron Batzdorff/NBC

A father-son moment between Jack and Randall

This Is Us - Season 3
Ron Batzdorff/NBC

Clearly that brotherly bond is still intact between Kevin (Justin Hartley) and Randall

This Is Us - Season 3
Ron Batzdorff/NBC

Kevin shares what he’s learned about Jack with Randall

This Is Us - Season 3
Ron Batzdorff/NBC

Did Kevin make the right decision sharing what he knows?

This Is Us - Season 3
Ron Batzdorff/NBC

Randall seems to be doing better than expected, given the information..

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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 VietnamSee Also

'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