This is an open-label, single-arm, Phase II feasibility study to examine the proportion of patients that complete neoadjuvant therapy followed by curative-intent surgery. Patients with high-risk, resectable, intrahepatic cholangiocarcinoma will receive the combination of gemcitabine, cisplatin, and durvalumab for 4 cycles in the neoadjuvant setting before undergoing surgical resection. After surgery, patients will receive the combination therapy of gemcitabine, cisplatin, and durvalumab for 4 cycles in the adjuvant setting.