It could be a very tricky summer to navigate Britain's rail systems, even when temperatures aren't hitting record levels. A host of rail unions have announced their strike dates after the RMT union staged their first walkouts in June. It will mean lots of disruption across Britain's network - here I run you through what's happening and what it's likely to do for passengers.This podcast is free, much like my weekly newsletter, which you can subscribe to at https://www.independent.co.uk/newsletters Hosted on Acast. See acast.com/privacy for more information.