Ivy is convinced Martin is carrying on with Gail, but Don reckons she's imagining things. Gail worries that Martin is getting too keen on her and Martin tells Don that whatever's going on between him and Gail is none of his concern. Derek fears that someone is moving in on his territory and tackles his competitor, but Bernie Bagshaw seems unperturbed about trespassing. Vera and Ivy go after the same job at Brown's textiles.