Is mian le Cléópátra a chruthú do Chaesar gur náisiún mór í an Éigipt i gcónaí. Chuige sin, tá an t-ailtire is fearr sa tír, Námánóbis, chun pálás mór maorga a thógáil ina onóir — laistigh de thrí mhí! Tuigeann Námánóbis gan mhoill go mbeidh cabhair uaidh. Draoi amháin a bheadh in ann cabhrú leis — Ogamaix, ar ndóigh, agus a chairde ón nGaill, Asterix agus Obelix. Tugann na laochra aghaidh ar Chathair Alastair san Éigipt agus ar iontais mhóra an domhain, na pirimidí, an Sfioncs — agus srón Chléópátra ina hiontas chomh mór le rud ar bith eile ann!

To prove to Julius Caesar that Ancient Egypt is still a great nation, Queen Cleopatra tells him her best architect, Námánóbis, will build a magnificent palace in Alexandria in his honour — within three months! Námánóbis realises this is going to be an impossible mission, unless he gets help from the druid Ogamaix and his fellow Gauls, Asterix and Obelix. With villanous saboteurs everywhere, our heroes head for Egypt,where the Queen’s pretty nose leaves its mark on them — and they leave their mark on the pyramids, the Sphinx!