Man, it's great to have the band together again. Sure, Lemire advances the plot, but he makes sure that it doesn't get in the way of the banter.
We learn that the Mandarin kept Clint and Kate alive because he had managed to capture one of the triplets and he needs Kate's help in making "it" work. Kate realizes that S.H.I.E.L.D. has cut her and Clint loose in the hope that the Mandarin will kill them. I'm not sure why they'd want them dead, but Lemire is clearly getting to that. We also still don't know what S.H.I.E.L.D. was doing with the triplets when they killed all those people in China. But, again, since the issue ends with Clint and Kate en route to take down S.H.I.E.L.D., I'm guessing that we're going to get answers sooner rather than later. (By the way, they're able to escape from the Mandarin due to the unexpected -- and totally awesome -- intervention of Marvel Boy, Kate's Plan B.)
But, this issue is really less about the MacGuffin and more about Clint and Kate. In a flashback, we see America Chavez try to convince Kate that saving "self-absorbed, chronically self-destructive" Clint isn't her responsibility, since he's a grown man. Kate acknowledges that, but she's clearly struggling with it, though it seems that she eventually agrees with America. In the future, though, it's all about the old-person banter. Clint just wishes that he was on the couch in sweatpants with Lucky 2. Don't we all?
*** (three of five stars)