Doorstep

A military detachment investigates a large mysterious object that emits intermittent sounds and a fragmentary transmission partly in English. Attempts to open the sealed shell reveal a living organism that kills several crewmen, prompting a senior officer to press for its destruction to protect nearby civilians and salvage his career, while visiting scientists argue for restraint and study. Tension escalates as mortar and heavy ordnance are deployed and decoding of the message suggests possible communication or threat, forcing a confrontation between aggressive containment and careful scientific inquiry amid uncertain motives and unknown intelligence.