Breaking Bad's final season opens with a flash

You must be watching a different program. Jesse has had qualms about where Walter was going from the first season. He’s been sliding downhill ever since Jane ODed; he kept seeing Gale getting shot by him whenever he played video games after the killing. Drew Sharp (the dirtbike kid) was the last straw. Jesse just isn’t the tough crystal slinger that he pretended to be in the beginning, and he’s been falling apart as Walt has become more and more callous. He certainly isn’t achieving “greatness.”