DC Duncan Lennox is on a week's secondment to Scotland Yard's Art and Antiques Squad. Investigating a young woman, Tessa Gannon, who tried to sell a forged painting to a gallery, Lennox finds a receipt from a gallery owned by an art dealer named Ivor Gregory, who has form for deception. Lennox befriends an artist named Richard Townes, who charges into Gregory's gallery as Lennox peruses the paintings. In the hope of getting a closer look at one of the paintings, Lennox arranges for his wife Shona to buy one of them. He gets it verfied, and is disappointed when it is an original. Shona insists on keeping it, but sends it back to the gallery to be re-framed. When the painting is returned, Lennox realises Gregory has swapped it for a fake, and it's the work of Richard Townes, but to his horror, Shona returns the painting to Gregory before the squad can arrest him. Tessa Gannon admits she had a painting copied by Townes, but she too is in possession of a fake. Gregory is arrested, and Lenn

Osbourne finds herself troubled after dealing with an asylum seeker, and finds it difficult to keep her professional and personal objectives separate. Torn between a war-torn Iran and a troublesome Sun Hill estate, Osbourne can't work out what sounds better for the woman and her young daughter. Osbourne is later reprimanded by Gold and warned to stay well away from the situation. Meanwhile, Sharpe and Hunter investigate an alleged assault on a lawyer by a female colleague, but Hunter suspects that ulterior motives are at work. Meanwhile, Ackland's hopes of engagement to Jim are boosted when she finds a ring in his desk, only to be told by Jim that he's engaged to Marie Graham.

Sgt. June Ackland is feeling sheepish about last night's blunder - thinking PC Jim Carver was about to propose, but work beckons. An elderly Czechoslovakian woman is being victimised on the local estate and June feels it is racially motivated. DS Phil Hunter and DC Eva Sharpe are puzzled when solicitor Robert Fenn withdraws his assault complaint against colleague Kim Bradbury, but then they discover Kim has resigned. Eva confesses she visited the seedy bar where Robert and his friends hang out and where the assault happened and she convinces Phil that they're dealing drugs. Cameron Tait goes undercover to check out the action, gets the evidence and they raid the bar. PC Gemma Osbourne is determined to help Ziba and her daughter Niki and can't even conceive of their returning to Iran, but at what cost to her career? Having already been warned off by Insp. Gold, her conscience gets the better of her, and she helps the woman escape. A screaming match ensues and Gemma is given her marching