Unspoiled! The Constant: Lost

Michael's back! He confessed to Walt what he did to get them off the Island, which ruined his relationship with the kid, so now he just wants to die. But the Island isn't finished with him yet. Enter Ben Linus and his convoluted plans. Michael is the spy on Widmore's freighter, and after telling Sayid his tale, he is marched directly to the captain. On the Island, Ben sends Alex to something called The Temple, with Karl and Danielle. While they're on their way, though, Karl and Danielle are shot. Is this part of another one of Ben's plans? Or is Alex in trouble?