This study is designed to evaluate the safety and efficacy of neoadjuvant and adjuvant atezolizumab in participants with resectable Non-Small Cell Lung Cancer (NSCLC). Neoadjuvant therapy will consist of two 21-day cycles with atezolizumab. Following surgery, adjuvant therapy will consist of up to 12 months of atezolizumab in participants who demonstrate clinical benefit with neoadjuvant therapy.