Every day is a live-fire exercise for Christian and Alex, who buy, sell, trade, and restore some of the world’s rarest firearms.Family Guns follows British antique-arms expert Christian and his brash all-American son Alex, the team behind International Military Antiques (IMA) – one of the world’s leading dealers in unusual wartime artefacts.In this family, dynamics take on a unique flavour, where the questions of the day include whether or not to buy a $250,000 Korean War-era tank; or if it is better to unload a $25,000 British colonial cannon now or let it gain value for later. And with two experts in the family under one warehouse roof, the office politics can be as explosive as the weapons being sold.EPISODE GUIDEFamily Guns: Family At WarMeet the Cranmers, owners of one of the world's leading military antiques dealers, as they prepare a shooting event for the Victorian Riflemen.Family Guns: I Wanna JeepChristian puts a $25,000 cannon to the test. Elsewhere, Alex and the warehouse guys experiment with a pair of WWII sniper rifles.Family Guns: Cannon ThievesPaul takes a $30,000 gamble by test-firing a 17th-century cannon. Will the ancient weapon survive? Elsewhere, Christian makes a pricey purchase.Family Guns: Cowboy ShootoutThe team tries out a variety of WWII weapons in preparation for an upcoming re-enactment. Meanwhile, Alex visits Texas for a promotional tour.Next Showing: Thursday 7 February at 10:00AM - National Geographic ChannelFamily Guns: One Shot, One KillAlex attempts to sell off some of his father's precious antique pistols behind his back – with serious consequences for family relations.Next Showing: Friday 8 February at 10:00AM - National Geographic ChannelFamily Guns: Grim ReaperFrom ancient pistols to retired tanks, military antiques can be big business. Meet the family firm trading in lucrative wartime memorabilia.Family Guns: Bury The HatchetAlex travels the States in search of sales, leading to a complicated deal for a rare muscat – and a $120,000 cannon that is beyond repair.Family Guns: Police, Camera, ActionA rift develops between the IMA owners when Alex makes a risky $250,000 purchase against his father's wishes.Family Guns: Aces HighAt a poker night, Christian brings a wooden box with a gift in it for Alex that is of the most incredible historical value