Eilidh has always wondered what life was like in Baile Dearg, where her grandparents lived before the Hydro dam was built. Now there's a loch where the village used to be, but Eilidh finds herself transported back in time to just before the glen was flooded. Getting back to the 21st century seems impossible, but there must be something she can do to unlock the time portal again. Bha Eilidh daonnan a' gabhail iongnadh de seorsa beatha a bh' aig a seanair is a seanmhair anns a' Bhaile Dearg, a chaidh a bhathadh le sgeama Hydro bho chionn bhliadhnaichean. Tha rudeigin annasach ag eirigh dhi ri taobh an locha agus anns a' mhionaid tha i air ais anns a' bhaile mar a bha e, air chall san am a dh'fhalbh gun doigh a bhith tilleadh. Ciamar a tha i a' dol a lorg slighe air ais dhan latha an-diugh?