Halfway through este vídeo of the Lockheed P-38 Lightning, there's an unusual-looking example. Notice the enlarged wing sections outboard of the engine bodies, and also how the cockpit fairing extends further aft than usual.
No other P-38 in that video has those features.
What were these devices (and their purpose)?
Also, what is all that gadgetry at the trailing edge of the port wing at its root (with respect to the port engine body), and also that L-shaped thing trailing behind?