at SFlix. Neptune, an automatic and electronically equipped track fault recorder; Tinsley marshalling yard; freight trains - cement, limestone, cars; Reading station and signal box; the laying of long welded rails; Toton diesel maintainance depot; new electrification multiple unit rolling stock for service from Euston, locomotive cab training simulator, Willesden control room; Cross-Channel - launching the SS Dover... are topics featured in this film.