With substantial implementation of 5G just around the corner, the worldwide tug-of-war is heating up for dominance in this fifth-generation mobile network. At the center is Chinese telecom giant Huawei, with its ambitious global strategy to offer 5G "smart city" packages. But in the US, the Trump administration sees Huawei's technology as a security threat and has urged nations to ban it. The program takes us to the frontlines in Europe, especially in Germany, as one city moves to embrace the Chinese infrastructure. We look behind the scenes at Huawei's 5G global strategy.