A collapsible cargo container assembly includes a collapsible skeleton framework defining a front, rear and opposite sides of the container assembly and includes a plurality of generally parallel ribs spaced from and generally planar to each other when the container assembly is in an open condition. A plurality of articulated braces are connected to and extend between the ribs to hold the ribs in spaced relationship in the open condition of the container assembly. The articulated braces are foldable to position the ribs in juxtaposition alongside each other in a collapsed condition of the container assembly. A flexible cover is positioned substantially about the collapsible framework and is fixed thereto for folding therewith as the framework moves back-and-forth between the open and collapsed conditions thereof.