A convoy mission to Samoa was completed at Pearl Harbor on 24 May. "Mustin" next escorted a merchantman with reinforcements to Midway Island, threatened by the Japanese attack which exploded while "Mustin" was returning to Pearl Harbor, where she arrived on 5 June. Two days later, the destroyer sailed with Task Force 17 (TF 17), searching for scattered Japanese survivors of the great battle of Midway. After a negative search, the force returned to Hawaiian waters on 13 June, and "Mustin" began 2 months of training and patrols out of Pearl Harbor.