Abstract: A fishing device adapted to be attached to a fishing rod having a fishing line connected at one of its ends to the rod and at its other end to a fishhook includes an inner tube telescoping within and axially aligned with an outer tube which is adapted to be attached to the fishing rod in parallel disposition thereto. A hook device is mounted on the inner tube and is adapted to be attached releasably to the fishing line. A main spring device urges resiliently the tube to an initial position, and a latching device fixes releasably the tubes in a set position against the force of the main spring and frees the two tubes relative to one another in response to a force applied to the hook device via the fishing line so that the tubes return abruptly under the force of the main spring to their initial position, thereby jerking on the fishing line to set the fishhook in place to catch a fish.