Among the gifts delivered by Eila, including a FP-45 Liberator charm, the Witches discover some microfilms containing secret information about the Warlock, which was destroyed by the Strike Witches in Britannia after it went berserk. Thinking that a secret weapon is being sent to them among a cargo shipment, Waltrud Krupinski, along with Hikari, Naoe and Nipa, are dispatched to assist a Britannian Witch in escorting the delivery fleet to Murmansk...