When Swaps Go Bad is the second episode of the third series of My Parents Are Aliens.
Brian and Sophie become hooked on a trading card game, and will go to any lengths to obtain more cards. They end up stealing and selling the school laptop. They then discover there is a rare card (Madonna) that they need to find. They find the card, but realise they have wasted their time and money. They feel very silly.
Full plot Edit
'To be added'