Stori am Archie Albright, sydd yn delio gyda’i rhieni, sydd yn amlwg ddim yn hoffi ei gilydd, a nid ydynt yn wych am guddio’r ffaith hwnnw. Maent yn actio’n rhyfedd a dyw Archie ddim yn hollol siwr pam. Ond pan mae Archie yn dod o hyd i bamffled pinc sy’n cwympo allan o boced ei dad, mae’n bosib ei bod wedi ffeindio’r ateb.

Gyda help Bell a Seb, ei ffrindiau gorau, mae Archie yn mynd ar antur anghofiadwy a thorgalonnus i ddiwedd yr enfys er mwyn ceisio drwsio’r problemau yn ei deulu.

My name’s Archie Albright, and I know two things for certain: 1. My mum and dad kind of hate each other, and they’re not doing a great job of pretending that they don’t anymore. 2. They’re both keeping a secret from me, but I can’t figure out what.

Things aren’t going great for Archie Albright. His dad’s acting weird, his mum too, and all he wants is for everything to go back to normal, to three months before when his parents were happy and still lived together. When Archie sees a colourful, crumpled flyer fall out of Dad’s pocket, he thinks he may have found the answer.

Only problem? The answer might just lie at the end of the rainbow, an adventure away. Together with his best friends, Bell and Seb, Archie sets off on a heartwarming and unforgettable journey to try and fix his family, even if he has to break a few rules to do it…