This single-arm clinical intervention study evaluates a 12-session SEE FAR CBT intervention for adults aged 18 years and older with posttraumatic stress disorder (PTSD). SEE FAR CBT is a trauma-focused cognitive-behavioral treatment approach. Participants will complete self-report psychological questionnaires at three time points: baseline, after completion of the intervention, and at a 3-month follow-up. The study aims to examine changes in PTSD symptoms and related psychological outcomes over the course of treatment and follow-up.