A surf-obsessed brother and sister embark on a journey in a camper van. The van was given to them by their father Geoff, and his last request was that his son and daughter take the van to Morocco, via France and Spain. Their goal is to find its seventies owner.

Mae brawd a chwaer sy'n dwli ar syrffio yn cychwyn ar daith mewn fan deithiol. Cawsant y fan gan eu tad Geoff, a'i ddymuniad olaf oedd i'w fab a'i ferch deithio yn y fan i Morocco, trwy Ffrainc a Sbaen. Eu nod yw canfod perchennog blaenorol y fan.