Very early in the morning just after midnight) Joseph and Emma take Knight's wagon and drive it toward the Hill Cumorah. Joseph Smith later tells Henry Harris that he used the seer stone upon instructions from an angel to find the plates. Joseph Smith says, while Emma prayed (staying with the wagon), he retrieved the gold plates. Joseph is given the plates, Urim and Thummim, and the breastplate. Meanwhile, Joseph Smith Sr. and Josiah Stowell were digging for money (per Martin Harris). Joseph hides the plates in a fallen hollow birch log and returns home in the morning.
After breakfast he tells visiting Joseph Knight "It is ten times Better then I expected. Then he went on to tell the length and width and thickness of the plates and, said he, they appear to be gold. But he seamed to think more of the glasses or the urim and thummim than he Did of the plates for says he, I can see anything. They are Marvelous."
Lucy sends Joseph Jr. to a cabinet maker, probably Willard Chase, to make a chest in which to put the plates. Chase says this occurred in the "fore part" of September ...
A few days later Joseph brings the plates home and devises several hiding places inside the house. When unfriendly visitors surround the house, the Smiths charge out of the house at night shouting military orders, as if the militia was present, to scare off the intruders.
[Source: Conkling, Christopher J., Joseph Smith Chronology; Palmyra Magic Timeline, http://www.exploringmormonism.com/palmyra-magic-timeline/; Mormon Chronology, N. R. Tidd, http://www.exmormon.org/mhistory.html; Vogel, Dan, Early Mormon Documents, Appendix B: Chronology, 1771-1831, http://amzn.to/T5nY8w]