Unissued / Unused material.
Army prepares to blow up sea mine. Shoeburyness, Essex.
MS mine on mud flats. MS soldiers hammering wooden cross in mud near water marking out area. Various shots Major Wilkinson examining mine. CU removing booster unit from mine. CU as fuse is laid. CU engineers watching.
CU as Major Wilkinson lights fuse and runs to truck which moves off. CU fuse burning. LS scene from offshore. MS truck driving along.