During the fourth week of their round the world cycle, Ellie and Mark enjoy snowdrops and snowflakes on the German section of the Danube cycle way. There's no sign of them waning after a month on the road, although Mark needsmto call in a sick day.

Week three of their attempt to cycle around the world sees Mark and Ellie visit the city of Strasbourg for a little longer than planned. They journey through the Black Forest, spin around Lake Constance where a serious mechanical failure has unexpected results. This episode contains crisps. Lot and lots of crisps.

In the very first week of their attempt to cycle around the world, Ellie and Mark tackle the frozen roads of Normandy and The Seine Valley in Northern France. A naysayer spurs them on, but some punctures and a little winter weather slows them down.

It's week 2 of Mark and Ellie's round-the-world cycle and they hit the 1,000km cycled milestone. They have a Valentine's night to remember, reach Strasbourg and the end of their time in France, and suffer incredibly cold toeses.