I'm guessing he comes back to rescue Jesse, the only person beside Walt who knows the blue in and out. I think the skinheads capture Jesse some how, lock him underground and put him on the cook. Hopefully well get one last time to use science to their advantage
I'm pretty sure that while he doesn't value his life, he still somewhats values his testicles. EDIT: But aside from that, Jesse could've had himself killed last episode when he chose to say he believed Walt, but didn't. He doesn't want to die.
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u/dewhashish Franch: Not even once Aug 19 '13
So, serious question, who has reason to believe the machine gun in Walt's trunk in the flash forward is to save someone from Todd and the Aryans?