"Two Legendary Chums" is the title for Blindspot season 3 episode 12 and based solely on name alone, we've got a reasonable expectation that this could end up being one of the more engaging episodes of the season. If nothing else, there's a chance to see a different side of Kurt Weller than we are typically used to.
One of the things that we've come to see over time with this series is that they find different ways to work some of the main characters into the story and give them different things to do. With Weller, it makes sense that "Two Legendary Chums" would be a great way to bring the character's roots back into the equation. After all, it's not as though he and Jane are in all that great a spot at the moment after some of what they've been through together. A new energy could help to focus him in on the mission, though at the same time it doesn't exactly wash away some of the pain that he has went through with Jane as of late.
02/02/2018 (08:00PM – 09:00PM) (Friday) : Weller (Sullivan Stapleton) and his former FBI partner reunite for a dangerous undercover mission while Zapata (Audrey Esparza) interrogates a past foe. Also starring Jaimie Alexander (Jane Doe), Rob Brown (Edgar Reade), Ashley Johnson (Patterson) and Luke Mitchell (Roman). Featuring special guest star David Morse (Hank Crawford) and guest starring Kristina Reyes (Avery), Anthony Lemke (Victor), Darren Goldstein (Don Shipley), Chance Kelly (Bresden), America Olivo (Ameni), Medina Senghore (Agent MacKenzie) and Mary Stuart Masterson (Eleanor Hirst).
One of the biggest surprises to me is that we still have some more story to tell with Elenaor Hirst. This is someone who we didn't think we would be seeing again, but that's part of the element of surprise … or at least it would be had NBC opted to not give away many of the finer details in advance.
The promo – This teases a little more of what could be ahead — namely, can Jane really trust Weller?