The CW has released the following Official episode description of Smallville’s season 10 premiere "Lazarus":

JOHN SCHNEIDER REPRISES HIS ROLE AS JONATHAN KENT IN THE FINAL SEASON OF SMALLVILLE
- The season premiere picks up where the finale left off. Lois finds Clark’s lifeless body and removes the blue kryptonite enabling him to heal himself. Lois sneaks away before Clark fully awakens in order to protect his secret. Chloe is desperate to find Oliver, so she turns to an unlikely source for answers. Jonathan returns to the Kent Farm with a message for Clark, and Tess awakens in a LuthorCorp lab.

The tenth and final season of Smallville premieres on September 24th on The CW Network at 8/7c.