The 17 year old boy was walking home along the Esplanade, near Yarrum Grove in Somerton Park, when a white sedan started driving slowly beside him at around 10pm on Thursday January 26.

The teen spoke with the four men in the car, who offered to drive him where he was going.

"The occupant of the car asked if he wanted a lift," detective chief inspector Baggoley said at a press conference on January 27.

"The boy said no again, repeatedly," he said.

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After declining a ride, he was allegedly forced into the back seat by two of the men.

While inside the car, the four men, reportedly in their 30s and early 40s, were tight-lipped in response to the teen's questions.

When traffic slowed at a roundabout the boy, physically uninjured and unthreatened, was able to escape from the car.

The teen hurried home to report the alleged kidnapping.

Police are looking for community assistance finding the two suspects, particularly dashcam and CCTV footage.

"No matter how innocuous it is," detective chief inspector Baggoley said.

The police report describes one suspect having a full black and grey beard, dark grey hoodie and a large build.

Another suspect is described as having a muscular build and wearing a white beanie with an orange t-shirt.

The four men in the car are described as Caucasian.

Anyone who saw or heard any suspicious activity *is urged to contact Crime Stoppers on 1800 333 000 or online at www.crimestopperssa.com.au