Trailing behind

IN TOW

["Think of how a boat or vehicle might be pulled along, often seen on roads or water when one is connected to another."]

"Trailing behind" hints at something being pulled along, like a boat towed by another vessel. The phrase "in tow" literally means being dragged or following closely, which fits perfectly. The wordplay is straightforward—no tricks—just a common expression used to describe something moving behind another.