On the evening of 10/16/17 CALS was alerted to respond with Squad 5 (Dunkirk), and E12 (North Beach) to an mvc reported serious on Rt-408. After confirming with Calvert Control that this was not an accidental dispatch, CHF10 responded as a medic unit to Anne Arundel County. AAPE94 was on location reporting 5 patients, 1 pri-1 and 4 pri-3's. Dunkirk Squad 5 and CHF 5 arrived on scene and began to assist E94 with removing the priority patient. AAM3 was the first transport unit on scene followed by PG A820. CHF10 was the 3rd EMS unit to arrive on scene quickly followed by PG M845. AAM3 transported the 1 pri-1 patient to the LZ (being covered by E12) and the other units packaged up the pri-3 patients, CHF10 was placed in service.