I loved meeting the character Eric. I hope we see him again. Chandler was great in the role. Very sincere. I liked seeing Cameron interact with him, especially since she seemed to care about his condition. I'll see how far Cameron can really grow.
The action scene took me by surprise. After Cameron Cold Cases her way to the truth, she deduced that the T-888 would be hiding inside the wall, waiting for 2010 to assassinate the mayor. Still, why was the mayor marked for death? Will he aid the Connors down the line?
After searching for more clues about the three dots, John snuck out -- again -- to hag with Riley, the master manipulator. Watching John interact with "normal" kids was a lot of fun. The fight was telegraphed, but it had to happen. Poor John, he's learning more about himself, but he's falling right into Riley's trap. Maybe Cameron should spend more time hanging out at home with John instead of researching Native American weapons at the library.