Watch InterCity 125: The Train That Saved Britain's Railways Episode 1 HD Full Free on SolarMovie. Watch InterCity 125: The Train That Saved Britain's Railways tv series online free. Documentary focusing on a British design classic and unsung hero of the British railway network, the...Documentary focusing on a British design classic and unsung hero of the British railway network, the InterCity 125 which debuted in 1976. Celebrity champions join the train's designer remembering this record-breaking workhorse.