Spoiler alert: Dr. Jack Shephard and his island-bound cohorts have killed polar bears and traveled through time, and now they’re returning for more. No matter which of Lost’s narrative arcs has left you hanging for the past five seasons, your only hope for resolution will arrive at 8 p.m. EST on Feb. 2. That’s when the final season of ABC’s Emmy‑ and Golden Globe award‑winning series begins. The sixth season will run 18 hours, including the two-hour season premiere.